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Chemistry: Electrical Current Producing Apparatus, Product, And Process > Fuel Cell, Subcombination Thereof Or Methods Of Operating > Housing Member, Seal, Spacer Or Fluid Distributing Or Directing Means > Having Sealing Feature > Having Support Or Spacers With Fluid Distribution Means

Having Support Or Spacers With Fluid Distribution Means

Having Support Or Spacers With Fluid Distribution Means patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

06/07/07 - 20070128497 - Electrode structure for stacked alkaline fuel cells
A flat electrode structure for use in alkaline fuel cell stacks has electrolyte and gas inlet and outlet manifolds, with the gas manifolds being at the sides of the electrode. There is at least one gas inlet manifold and one gas outlet manifold in each side frame, and electrolyte and ...

06/07/07 - 20070128496 - Cathode fuel channel structure for fuel cell
The invention relates to a structure of cathode fuel channel structure for a fuel cell, and the fuel cell includes more than one membrane electrode assembly. The cathode fuel channel structure comprises a plurality of trenches disposed above the cathodes of the membrane electrode assemblies, and the trenches are evenly ...

05/31/07 - 20070122682 - Direct oxidation fuel cell
A direct oxidation fuel cell is provided. A direct oxidation fuel cell includes one or more electricity generators which have a membrane-electrode assembly and anode and cathode members disposed in close contact with respective sides of the membrane-electrode assembly interposed therebetween to generate electrical energy and water by a reaction ...

05/31/07 - 20070122681 - Direct oxidation fuel cell
A direct oxidation fuel cell is provided. A direct oxidation fuel cell includes one or more electricity generators which have a membrane-electrode assembly and anode and cathode members disposed in close contact with respective sides of the membrane-electrode assembly interposed therebetween in order to generate electrical energy and water by ...

05/24/07 - 20070117004 - Fuel cell stack having coolant passage whose lower area has larger flow resistance
A fuel cell stack having stacked unit fuel cells, each having a pair of separators between which a membrane electrode assembly is provided, which includes an anode and a cathode. Each separator has protruding lines arranged vertically in a zigzag manner, which protrude in a direction going away from the ...

05/24/07 - 20070117003 - Metallic bipolar plates with high electrochemical stability and improved water management
A flow field plate or bipolar plate for a fuel cell that includes a carbide coating that makes the bipolar plate conductive, hydrophilic and stable in the fuel cell environment. Suitable carbides include, but are not limited to, chromium carbide, titanium carbide, tantalum carbide, niobium carbide and zirconium carbide. The ...

05/24/07 - 20070117002 - Spinning electrode fuel cell
A spinning electrode fuel cell is disclosed. The spinning electrode fuel cell includes a housing and a stacked disk assembly which is rotatably mounted in the housing. The stacked disk assembly includes multiple electrochemical cells connected to each other. A motor engages the stacked disk assembly for rotating the stacked ...

05/24/07 - 20070117001 - Method of fabricating flow field plates and related products and methods
An improved flow field plate and methods related to the manufacture of the same. Flow field plates are at least partially coated with a low viscosity coating resin to increase mechanical strength and/or to decrease fluid permeability, and find particular utility for manufacturing thin, carbonaceous flow field plates for fuel ...

05/17/07 - 20070111083 - Fuel cell stack having gas discharge passage and drainage passage joined at one end of the stack
A fuel cell stack includes stacked unit fuel cells provided between end holding members, each unit fuel cell having a membrane electrode assembly including an anode and a cathode. A pair of separators respectively contact the anode and the cathode, and respectively form reaction gas passages between one separator and ...

05/17/07 - 20070111082 - Fuel cell
A fuel cell has a structure that an area of an opening at which a first flow passage opens toward a diffusion layer side of a fuel electrode is smaller than an area of an opening at which a second flow passage opens toward the diffusion layer side. This structure ...

05/17/07 - 20070111081 - Bipolar plate or electrode plate for fuel cells or electrolyzer stacks, as well as a method for producing a bipolar plate or electrode plate for fuel cells or electrolyzer stacks
Bipolar plate or electrode plate for fuel cells or electrolyzer stacks, which is formed from a conductive material, and in which the conductive material is at least partly configured to be surrounded by a non-conductive material, by means of injection molding, or which is composed of individual parts made of ...

05/17/07 - 20070111080 - Spirally-wound fuel cell assembly
A spirally-wound fuel cell assembly is disclosed. The spirally-wound fuel cell assembly includes an enclosure. Multiple cell assemblies are disposed in electrical contact with each other and provided in the enclosure. Each of the cell assemblies has at least one membrane electrode assembly including a negative electrode, a positive electrode ...

05/10/07 - 20070105003 - Solid oxide fuel cell device and system
The invention provides a solid oxide fuel cell device and a fuel cell system incorporating a plurality of the fuel devices, each device including an elongate substrate the length of which is the greatest dimension such that the elongate substrate has a coefficient of thermal expansion having only one dominant ...

05/10/07 - 20070105002 - Fuel battery
A fuel battery in which a gas communication passage, wide in relation to the thickness of the unit cell, is provided and sufficient gas can be supplied to a generating section even if the fuel battery is made thin. A spacer and a separator are stacked. The spacer has a ...

05/10/07 - 20070105001 - Fuel cell stack
A fuel cell stack (10) comprises a plurality of stacked unit cells (11). Each unit cell (11) comprises a membrane electrode assembly (1a), and separators (1b, 1c) provided with ribs (5b) which contact the membrane electrode assembly (1a) to realize a current collecting function, and gas passages (4b) formed between ...

05/10/07 - 20070105000 - Flow field plate geometries
The present invention provides a flow field plate (separator) for a fuel cell or electrolyser, comprising one or more branched primary fluid delivery/removal channels feeding narrower secondary fluid diffusion channels defined by an array of lands forming a network of interconnected fluid diffusion channels therebetween. The fluid delivery/removal channels and ...

05/03/07 - 20070099062 - Fuel cell system suitable for complex fuels and a method of operation of the same
A fuel cell system comprising a first electrode-electrolyte assembly having a first electrode coupled to one side of thereof and a second electrode coupled to a generally opposite side of the first electrode-electrolyte assembly, and a first conduit for delivering fuel to the first electrode at ambient temperature. The fuel ...

05/03/07 - 20070099061 - Semi-passive type fuel cell system
A semi-passive fuel cell system is provided. A stack in which a plurality of unit cells are laterally stacked with one another is provided. Each unit cell includes a membrane-electrode assembly and bipolar plates located on both sides of the membrane-electrode assembly. The membrane-electrode assembly includes an electrolyte membrane, a ...

05/03/07 - 20070099060 - Direct liquid feed fuel cell
A direct liquid feed fuel cell includes a membrane electrode assembly (MEA) including an anode electrode and a cathode electrode respectively disposed on either side of an electrolyte membrane. A conductive anode plate and a conductive cathode plate which respectively face the anode electrode and the cathode electrode, and have ...

05/03/07 - 20070099059 - Electrokinetic micro power cell using pile-up disk type microfluidic-chip with multi-channel
Disclosed is a micro power cell capable of being applied as an energy source and utilizing a streaming potential phenomenon occurring in accordance with an electrokinetic principle when an electrolyte aqueous solution flows in the microchannels piled up in several layers. The streaming potential cell consists of a PDMS microfluidic-chip ...

04/26/07 - 20070092782 - Multiple flowfield circuits to increase fuel cell dynamic range
A method and device for operating a fuel cell system. The device includes a flowfield plate that includes a header section and a channel section. The header section includes inlet flowpaths and outlet flowpaths, where the inlets formed in the header section are fluidly decoupled from one another, as are ...

04/26/07 - 20070092781 - Sofc seal and cell thermal management
The solid oxide fuel cell module includes a manifold, a plate, a cathode electrode, a fuel cell and an anode electrode. The manifold includes an air or oxygen inlet in communication with divergent passages above the periphery of the cell which combine to flow the air or oxygen radially or ...

04/19/07 - 20070087257 - Bipolar plate and fuel cell stack using the same
A bipolar plate and a fuel cell stack using the same. The bipolar plate used in the fuel cell stack includes: a first plate having a fuel flow passage; and a second plate having an oxidant flow passage and a land, the land being on the second plate and formed ...

04/19/07 - 20070087256 - Fuel cell
A PEFC (polymer electrolyte fuel cell) has a cathode separator for a PEFC working at 100° C. or higher. The cathode separator has gas passages to fed oxidant gas. Each of the passages increases the sectional area thereof with going down stream along with gas flow. That is, the PEFC ...

04/19/07 - 20070087255 - Device to control the flow speed of media through a fuel cell stack
A fuel cell stack that includes a stack of fuel cells each having a cathode side bipolar plate including parallel cathode gas flow channels. Airflow from a cathode inlet manifold is directed to the flow channels to provide the cathode gas to the fuel cell membrane. The fuel cell stack ...

04/19/07 - 20070087254 - Mid-sectional fuel distributor for fuel cells
In one embodiment the present comprises an air inlet 2, a series of fuel cells 6, a new fuel inlet 14, a fuel distributor 16, a recirculation plenum 19, and an exhaust 12. Fresh fuel from the fuel distributor 16 enters the fuel cell stack in a middle-third section of ...

04/12/07 - 20070082252 - Pressurized coolant for stamped plate fuel cell without diffusion media in the inactive feed region
Clearance gaps in the inactive feed regions of a fuel cell stack are controlled by non-bonded, non-nested bipolar plates to provide reactant flow uniformity and pressure within fuel cells and fuel cell stacks utilizing nested bipolar plates in the active feed regions and non-nested bipolar plates in the inactive feed ...

03/29/07 - 20070072052 - Fuel cell and fuel cell system with the same
A fuel cell is provided. The fuel cell includes a medium member. Unit areas are formed at both sides of the medium member. The unit areas include outlets and inlets which allow a fuel to flow. First path members which have first flowpaths for circulating the fuel are disposed at ...

03/29/07 - 20070072051 - Fuel cell and fuel cell system
Provided is a fuel cell including a container having at least two openings, a power generating unit contained in the container, the power generating unit having a membrane electrode assembly, an anode and a cathode channel plates, and a fan to supply oxygen into the membrane electrode assembly from one ...

03/29/07 - 20070072050 - Fuel cell
A small-sized fuel cell without performance deterioration is provided by a fuel cell unit including: a membrane electrode assembly which has an anode electrode and a cathode electrode provided on both sides of an electrolyte membrane; a diffusion layer for supplying the cathode electrode with air, disposed at the cathode ...

03/29/07 - 20070072049 - Fuel cell and fuel cell system
A fuel cell includes an anode, a cathode, an electrolyte membrane arranged between the anode and the cathode, a cathode passageway plate for supplying the air to the cathode, including a groove which forms an air passageway together with the cathode, and a hydrophilic member arranged on the inside surface ...

03/29/07 - 20070072048 - Fuel cell
A fuel cell includes a fuel electrode, an oxidant electrode, a fuel supply port, and a porous material layer for transferring a liquid fuel from the fuel supply port to the fuel electrode. The porous material layer has different values of at least one of a porosity, a permeability and ...

03/29/07 - 20070072047 - Fuel flow board structure for fuel cell
The present invention relates to an improvement of a fuel flow board structure for a fuel cell comprising a first substrate made of a material with good thermal conductivity and a second substrate made of a material with good adhesion connecting to the first substrate to become a one-piece structure. ...

03/29/07 - 20070072046 - Electrochemcial cell structures and methods of making the same
An electrochemical cell structure comprises a conductive base, that defines a plurality of holes, and a grid layer disposed on the conductive base. A porous support layer at least partially interpenetrates the grid layer to at least one of the conductive base or the holes. ...

03/22/07 - 20070065711 - Air independent power production
A fuel cell system having a fuel cell with a first reactant inlet, a first reactant outlet, a second reactant inlet, a second reactant outlet, a coolant inlet and coolant outlet. A first reactant supply subsystem supplies a first reactant incoming stream to the first reactant inlet of the fuel ...

03/22/07 - 20070065710 - Fuel cell
A fuel cell includes electrolyte electrode assemblies and a pair of separators sandwiching the electrolyte electrode assemblies. The separator includes a plurality of circular disks, and a plurality of protrusions forming a fuel gas channel for supplying a fuel gas along an electrode surface of an anode are provided on ...

03/22/07 - 20070065709 - Method and apparatus for porous catalyst on a fuel cell flow field and high temperature membrane
In accordance with one embodiment of the invention, a fuel cell flow field is provided with a porous catalyst layer formed over the flow field. The flow field can be used to ionize reactant gases. In accordance with another embodiment, a high temperature fuel cell membrane, such as a polymer ...

03/22/07 - 20070065708 - Water blocking layer and wicking reservoir for pemfc
A fuel cell including a water blocking layer positioned between anode gas flow channels and a gas diffusion media. The blocking layer prevents water from propagating through the gas diffusion media layer and entering the anode flow channels, while allowing gas from the flow channels to flow through the diffusion ...

03/15/07 - 20070059582 - Fluid conduit for an electrochemical cell and method of assembling the same
A fluid conduit for use in an electrochemical cell, the fluid conduit comprising a support comprising an elastically deformable material and having a plurality of apertures extending therethrough defining a mesh through which fluid communication can be maintained and a peripheral sealing area; a flow plate positioned adjacent the support, ...

03/15/07 - 20070059581 - Electrochemical cell component
An electroconductive integrated substrate and a process of producing the same, which comprises a porous conductive gas diffusion layer having large number of pores with significant gas permeability, and a gas impermeable electroconductive flow field plate having landing surfaces laminated on the surface of gas diffusion layer and integrally bonded ...

03/08/07 - 20070054174 - Fuel cell
A fuel cell includes a substrate having a pair of grooves, an electrolyte membrane lying on the substrate so as to define a pair of flow channels, and catalyst-bearing current collector layer sections disposed on the inner wall of the grooves or the inside surface of the electrolyte membrane defining ...

03/08/07 - 20070054173 - Fuel cell device having circuit components
A fuel cell device with circuit components is disclosed, which includes at least one fuel cell board, a flow board and at least one circuit component. The fuel cell board is made of at least one laminated and stacked printed circuit substrate, and includes at least one membrane electrode assembly ...

03/01/07 - 20070048591 - Flow field plates for fuel cells
This invention provides a type of cathode flow field plate for fuel cells. The cathode flow field plate comprises a cooling flow field and a reacting flow field, gas entrances, gas exits and plate ribs. Here, an end of said flow field is connected to the gas entrances. The other ...

03/01/07 - 20070048590 - Fuel cell system, and unit cell and bipolar plate used therefor
A bipolar plate includes at least two channels respectively arranged in first and second opposite surfaces of the bipolar plate, the at least two channels adapted to allow respective fluids to flow therethrough; the first surface of the opposite surfaces of the bipolar plate has hydrophobicity and the second surface ...

03/01/07 - 20070048589 - Integrated micro fuel cell apparatus
A micro fuel cell and method of forming such on a substrate (12) is provided that derive power from a three dimensional fuel/oxidant interchange. The fuel cell includes a plurality of porous pedestals (17) formed on the substrate (12), each porous pedestal (17) including an anode (68), a cathode (70) ...

03/01/07 - 20070048588 - Hybrid electrically conductive fluid distribution separator plate assembly for fuel cells
In at least one embodiment, the present invention provides an electrically conductive fluid distribution separator plate assembly, a method of making, and a system for using, the electrically conductive fluid distribution separator plate assembly. In at least one embodiment, the electrically conductive fluid distribution separator plate assembly comprises a metallic ...

02/22/07 - 20070042258 - Fuel cell stack including bypass
A fuel cell stack including a bypass is provided. The fuel cell stack includes a plurality of electricity generating cells in the known manner. A bypass is included for reducing the water entering the electricity generating cells of the fuel cell stack. The bypass may comprise at least one bypass ...

02/22/07 - 20070042257 - Improvement on the uniformity of fluid flow rate for interconnecting plate for planar solid oxide fuel cell
A flat connecting plate designed for solid oxide fuel cell to improve the uniformity of fluid flow rate comprising a series of parallel ribs and grooves formed by the spaces between the ribs, the lengths of the ribs vary in accordance with the variation of the edge at proximity of ...

02/15/07 - 20070037037 - Pattern molding of polymeric flow channels for micro fuel cells
The invention relates to a method for large scale manufacturing of polymeric micro fuel cells using a metallic mold. The method includes creating a Gaussian-shaped channel on a first substrate using a laser; sputtering a metallic seed layer over the first substrate using a first metal; electroplating a second metal ...

02/08/07 - 20070031721 - Process for application of a hydrophilic coating to fuel cell bipolar plates
A process comprising: depositing a coating on a fuel cell bipolar plate using plasma assisted chemical vapor deposition. ...

02/08/07 - 20070031720 - Laminar bypass for cascaded stack
A fuel cell stack that includes cascaded stack stages and tube bundle flow restrictions for providing a cathode input gas to each stage in the stack. The stack includes a first flow pipe for providing cathode gas flow to a first stage of the plurality of stages of the fuel ...

02/08/07 - 20070031719 - Separator and cell using the same for use in solid polymer electrolyte fuel cell
A separator for use in a solid polymer electrolyte fuel cell, including a membrane/electrode assembly including a fuel electrode and an oxidant electrode disposed on either side of a solid polymer electrolyte membrane; a first separator superposed against a surface of the oxidant electrode forming an oxidant gas flow passage; ...

02/01/07 - 20070026288 - Electrochemical cell with flow field member
An electrochemical cell having a membrane electrode assembly (MEA), a cell separator plate, and a plurality of compressible layers of a carbon material is disclosed. The cell separator plate is disposed on a side of the MEA and defines a flow field that extends from the MEA to the cell ...

01/25/07 - 20070020506 - Modular fuel cell cassette spacers for forming a solid-oxide fuel cell stack
In a modular fuel cell cassette for forming a fuel cell stack, anode openings in the mounting plate and separator plate are separated and connected by modular spacer rings such that the cassette is incompressible at operating temperatures and compressive loads within the stack. The spacer rings are formed in ...

01/25/07 - 20070020505 - Electrochemical arrangement comprising an elastic distribution structure
An electrochemical arrangement with at least one distribution structure for introducing and distributing a reactant, which is designed as a composite of several layers, and wherein the distribution structure is led essentially in a plane and is elastic against pressure loading perpendicular to the plane in a controlled manner. ...

01/25/07 - 20070020504 - Fuel cell
An assembling operation of a fuel cell is effectively simplified. With the simple and economical structure, the desired sealing function is achieved. The fuel cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. Connection channels are provided on the first metal separator. ...

01/25/07 - 20070020503 - Bipolar plate and fuel cell comprising such a bipolar plate
The invention relates to a bipolar plate, for fuel cells, characterised in comprising a layer of a hydrophobing material which is soluble in a solvent, on the surfaces thereof. Water forms small droplets on the surfaces of the bipolar plate due to said layer, which are loosely held on the ...

01/18/07 - 20070015039 - Fuel cell
A fuel cell includes electrolyte electrode assemblies and a pair of separators sandwiching the electrolyte electrode assemblies. Each of the separators has a first small diameter end portion to form a fuel gas supply passage therein, and circular disks sandwiching the electrolyte electrode assemblies to form a fuel gas flow ...

01/18/07 - 20070015038 - Fuel cell separator and method of manufacturing the same
A method of manufacturing a fuel cell separator, includes the steps of: preparing a first sheet, which is formed with a main material containing, therein, expanded graphite material and binder, and a second sheet configured to face at least one of surfaces which are formed at an outer edge portion ...

01/18/07 - 20070015037 - Cao fuel cell stack with large specific reactive surface area
A fuel cell stack is constructed based on a plurality of micro fuel cell units having a generally circular cross section. Each micro fuel cell unit includes an electric conductive tube that comprises a porous wall section and a non-permeable wall section, an inner electrode being disposed coaxially around and ...

01/18/07 - 20070015036 - Electrically conductive metal fluid distribution plate for fuel cells
In at least one embodiment, the present invention provides an electrically conductive fluid distribution plate and a method of making, and system for using, the electrically conductive fluid distribution plate. In at least one embodiment, the plate comprises an electrically conductive fluid distribution plate comprising a metallic plate body defining ...

01/18/07 - 20070015035 - Lightweight direct methanol fuel cell and supporting systems
A lightweight direct methanol fuel cell unit (20) comprising a fuel cell stack (24) enclosed within a housing (22). In one embodiment the fuel cell stack includes a plurality of polymer electrolyte membrane electrode assemblies (52) stacked alternatingly with a plurality of bipolar plates (48). Each bipolar plate includes a ...

01/11/07 - 20070009781 - Flow field plates for fuel cells
This invention relates to a type of flow field plate for fuel cells. The flow field plates include cathode flow field plates and anode flow field plates. There are one or more flowpaths, gas entrances and gas exits on both the cathode and anode flow field plates. One end of ...

01/04/07 - 20070003815 - Fuel cell contact element including a tio2 layer and a conductive layer
A flow field plate or bipolar plate for a fuel cell that includes a combination of TiO2 and a conductive material that makes the bipolar plate conductive, hydrophilic and stable in the fuel cell environment. The TiO2 and the conductive material can be deposited on the plate as separate layers ...

01/04/07 - 20070003814 - Polymer electrolyte membrane fuel cell stack
A polymer electrolyte membrane fuel cell stack (52) includes a plurality of membrane electrode assemblies (12) having evenly distributed fuel concentration across an anode (24), and efficient cooling across a cathode (26). A first plate (14) has a fuel side (28) with a plurality of serpentine channels (40) formed therein ...

01/04/07 - 20070003813 - Stable conductive and hydrophilic fuel cell contact element
A flow field plate or bipolar plate for a fuel cell that includes a metal oxide coating that makes the bipolar plate conductive, hydrophilic and stable in the fuel cell environment. Non-limiting examples of suitable doped coatings Ta doped TiO2, Nb doped TiO2 and F doped SnO2. In an alternate ...

01/04/07 - 20070003812 - Current collector plates of bulk-solidifying amorphous alloys
Collector plates made of bulk-solidifying amorphous alloys, the bulk-solidifying amorphous alloys providing ruggedness, lightweight structure, excellent resistance to chemical and environmental effects, and low-cost manufacturing, and methods of making such collector plates from such bulk-solidifying amorphous alloys are provided. ...

12/28/06 - 20060292433 - Fuel cell and fuel cell stack
A fuel cell includes electrolyte electrode assemblies and a pair of separators sandwiching the electrolyte electrode assemblies. A fuel gas channel is provided along one surface of the separator, and an oxygen-containing gas channel is provided along the other surface of the separator. A groove connected to a fuel gas ...

12/28/06 - 20060292432 - Fuel cell and fuel cell stack
A fuel gas supply channel connecting a fuel gas supply passage and a fuel gas inlet are provided in a separator, a channel lid member, and a circular disk member. A filter mechanism for filtering a fuel gas supplied from the fuel gas supply passage to a channel unit is ...

12/28/06 - 20060292431 - Direct liquid feed fuel cell stack
A direct liquid feed fuel cell stack has a structure in which membrane electrode arrays (MEAs), each having an anode electrode and a cathode electrode on either side of an electrode membrane, are stacked and a conductive anode plate and a conductive cathode plate are respectively formed to face the ...

12/28/06 - 20060292430 - Fuel cell and fuel cell module therefor
A fuel cell module includes a multitude of permeable anode plates and cathode plates which are stacked one above the other in an alternating manner. An electrolyte material is positioned between adjacent anode plates and cathode plates. Connections to the anode plates and cathode plates are provided for carrying away ...

12/28/06 - 20060292429 - Fuel utilisation in electrochemical fuel cells
A fuel cell assembly provides for the delivery of fluid into a channel of a fluid flow field plate in alternating flow directions through the channel for delivery of the fluid to a membrane-electrode assembly. The fuel cell includes a fluid flow field plate having a channel for delivery of ...

12/21/06 - 20060286433 - Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
Various embodiments relate to interconnects for solid oxide fuel cells (“SOFCs”) comprising ferritic stainless steel and having at least one via that when subjected to an oxidizing atmosphere at an elevated temperature develops a scale comprising a manganese-chromate spinel on at least a portion of a surface thereof, and at ...

12/21/06 - 20060286432 - Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
Various embodiments relate to interconnects for solid oxide fuel cells (“SOFCs”) comprising ferritic stainless steel and having at least one via that when subjected to an oxidizing atmosphere at an elevated temperature develops a scale comprising a manganese-chromate spinel on at least a portion of a surface thereof, and at ...

12/21/06 - 20060286431 - Flow channel on interconnect of planar solid oxide fuel cell
The present invention is a flow channel on an interconnect of a planar solid oxide fuel cell, comprising a first flow area and a second flow area where operation flows of a fuel cell flow evenly and smoothly to the interconnect to uniform the current density distribution of an electricity ...

12/21/06 - 20060286430 - Electrode structure for stacked alkaline fuel cells
A flat electrode structure for use in alkaline fuel cell stacks has electrolyte and gas inlet and outlet manifolds, with the gas manifolds being at the sides of the electrode. There is at least one gas inlet manifold and one gas outlet manifold in each side frame, and electrolyte and ...

12/21/06 - 20060286429 - Method and apparatus for improved fluid flow within an electrochemical cell
Treated porous flow field members are used to support membranes in electrochemical cells and to enhance fluid flow to and from the membrane. The treated porous includes a support material having at least a portion thereof treated with a quantity of hydrophobic polymer, a quantity of hydrophilic polymer, or a ...

12/14/06 - 20060280995 - Small volume, fuel cell inlet fuel gas distributor having low pressure drop
In a fuel cell stack, an inlet fuel distributor (15, 31, 31a, 31b) comprises a plurality of fuel distributing passageways (17-23, 40-47, 64) of substantially equal length and equal flow cross section to uniformly distribute fuel cell inlet fuel from a fuel supply conduit (13, 14, 50) to a fuel ...

12/14/06 - 20060280994 - Direct liquid feed fuel cell stack
A direct liquid feed fuel cell stack includes a first end plate and a second end plate facing each other, and a plurality of unit cell modules mounted between the first end plate and the second end plate, wherein an electrical circuit that contacts terminals of the unit cell modules ...

12/07/06 - 20060275645 - Electrochemical fuel cell stack with integrated anode exhaust valves
An electrochemical fuel cell stack with integrated anode exhaust valves is disclosed, comprising a plurality of fuel cells, each fuel cell having an anode and at least one anode flow field channel, an anode exhaust manifold fluidly connected to the at least one anode flow field channel of each fuel ...

12/07/06 - 20060275644 - Reduction of voltage loss by voltage cycle through the use of specially formed bipolar plates
A fuel cell that includes specially configured bipolar plates that separate the reactant gas flow field in an active area of the fuel cell into a primary flow channels and a secondary channels. In one embodiment, the primary flow channels are in use over the entire operating range of the ...

12/07/06 - 20060275643 - Fuel cell separator plate coating
A fuel cell electroconductive element, or bipolar plate, that includes a substrate with a cationic or anionic exchange resin coating deposited thereon, and a method for making the same. The bipolar plate has a fluid flow field formed therein. The ion-exchange polymer is preferably deposited on a region of the ...

12/07/06 - 20060275642 - Method of making hydrophilic fuel cell bipolar plate coating by plasma induced polymerization
The present invention provides a fuel cell electrically conductive element with a polymeric surface comprising a flow field, at least a part of the flow field having a grafted, permanently hydrophilic, polymer coating. The element is made by applying a layer of a monomer mixture of a hydrophilic, ethylenically-unsaturated monomer ...

12/07/06 - 20060275641 - Electrolyte migration control for large area mcfs stacks
The present invention relates to a new strategy against the electrolyte migration through the gasket in externally manifolded MCFC stacks. This is obtained by endowing a stack of molten carbonate fuel cells (MCFCs) of an electrolyte management tool separated from the cells by an electronically conductive material which is impervious ...

11/30/06 - 20060269822 - Solid oxide electrolyte fuel cell plate structure, stack and electrical power generation unit
A solid electrolyte fuel cell plate structure includes a cell element layer composed of a solid electrolyte, an air electrode layer and a fuel electrode layer, a porous base body supporting the cell element layer, and a gas-impermeable member having electric conductivity. The cell element layer is arranged such that ...

11/30/06 - 20060269821 - Fuel cell
A fuel cell having: a fuel electrode and an oxidant electrode disposed to sandwich a solid polymer electrolyte membrane; current collecting plates disposed outside of the fuel electrode and the oxidant electrode; a fuel electrode channel member disposed outside of the current collecting plate disposed outside of the fuel electrode; ...

11/30/06 - 20060269820 - Testing fixture for membrane electrode assembly
This invention relates to a testing fixture for membrane electrode assembly, for testing performance of the membrane electrode assembly, the testing fixture including a first mold unit and a second mold unit. The first and second mold units are capable of clamping towards and separating from each other, and during ...

11/23/06 - 20060263671 - Bipolar plate having integrated gas-permeable membrane
The present invention is directed to a novel anode plate forming an anode chamber of a fuel cell. The anode plate includes an anode fuel flow field, a substantially gas permeable membrane, and a channel coupled to an outlet positioned immediately adjacent said membrane. The channel directs gaseous effluents produced ...

11/23/06 - 20060263670 - Fuel cell bipolar plate
A fuel cell bipolar plate obtained by subjecting a body shaped from a specific composition to surface roughening treatment and atmospheric pressure plasma treatment has a gas flow channel face with specific surface characteristics which endow the bipolar plate with an excellent and long-lasting hydrophilicity that enables water which forms ...

11/23/06 - 20060263669 - Separator for fuel cells
A separator for fuel cells is provided, which has excellent electrical conductivity, mechanical strength and gas impermeability. The separator is a molded article of a carbon-phenol resin molding compound obtained by reacting a phenol with an aldehyde in the presence of a catalyst, while mixing them with a carbon powder. ...

11/23/06 - 20060263668 - Novel membrane electrode assembly (mea) architecture for improved durability for a pem fuel cell
An electrically conductive fluid distribution element for use in a fuel cell having a layer of a conductive non-metallic fiberless microporous media. In certain embodiments, an electrically conductive metal is deposited along a surface of the element to form one or more metallized regions. The metallized regions are arranged to ...

11/23/06 - 20060263667 - Bipolar separator for fuel cell stack
It is described a bipolar separator for polymer membrane fuel cell stacks, delimited by two sheets provided with fluid passage holes connected by means of a corrugated element and comprising a passage section for a thermostatting liquid, which allows to achieve the withdrawal of heat from the adjacent cells and ...

11/16/06 - 20060257713 - Porous, electrically conductive fluid distribution plate for fuel cells
In at least one embodiment, the present invention provides an electrically conductive fluid distribution plate and a method of making, and system for using, the electrically conductive fluid distribution plate. In at least one embodiment, the plate comprises a plate body defining a set of fluid flow channels configured to ...

11/16/06 - 20060257712 - Hydrophilic, electrically conductive fluid distribution plate for fuel cell
In at least one embodiment, the present invention provides a hydrophilic electrically conductive fluid distribution plate and a method of making, and system for using, the hydrophilic electrically conductive fluid distribution plate. In at least one embodiment, the plate comprises a plate body defining a set of fluid flow channels ...

11/16/06 - 20060257711 - Electrically conductive fluid distribution plate for fuel cells
In at least one embodiment, the present invention provides an electrically conductive fluid distribution plate and a method of making, and system for using, the electrically conductive fluid distribution plate. The plate comprises a plate body having a surface defining a set of fluid flow channels configured to distribute flow ...

11/16/06 - 20060257710 - Fuel cells with multidirectional fuel flow
In a stack of non-circulating-type fuel cells 20 where a supply of a fuel gas is not recirculated, a control circuit 50 sets a changeover valve assembly 41 in a disconnected state from both high-pressure hydrogen tanks 30 and outside of a cell stack body 21, while setting residual changeover ...

11/16/06 - 20060257709 - Modularly built high-temperature fuel cell system
Until now, additional components such as afterburners, reformers or heat exchangers are arranged as separate units and, as a rule, are connected to the high-temperature fuel cell stack by means of pipes. The disadvantage of this construction method is that it requires a large constructional volume and high investment costs ...

11/09/06 - 20060251949 - Fuel cell system and vehicle with fuel cell system mounted thereon
The voltage application unit first applies voltages (+,+,0,−,−,0) respectively to the electrostatic delivery electrodes 37 belonging to the phase ‘a’, the phase ‘b’, the phase ‘c’, the phase ‘d’, the phase ‘e’, and the phase ‘f’, and then successively applies voltages (0,+,+,0,−,−), voltages (−,0,+,+,0,−), voltages (−,−,0,+,+,0), voltages (0,−,−,0,+,+), and voltages ...

11/09/06 - 20060251948 - Membrane electrochemical generator
The membrane electrochemical generator (100) is fed with gaseous reactants and comprises a multiplicity of reaction cells (101) and a multiplicity of cooling cells (102) mutually connected in series and assembled according to a filter-press type configuration. Each reaction cell (101) is delimited by a pair of conductive bipolar plates ...

11/02/06 - 20060246341 - Gas distribution panel for a fuel cell and gas distribution panel containing a fuel cell
The invention relates to a gas distribution panel for a fuel cell wherein gas guiding channels having a meandering-shaped structure and which extend in a parallel manner are arranged. The invention is characterized in that cell connectors having various widths are provided on the meander-shaped defining channels in order to ...

10/26/06 - 20060240310 - Fuel cell system
According to one embodiment, a fuel cell system includes a cell unit having a plurality of laminated single cells, a circulating pipeline connected to a fuel electrode of each single cell of the cell unit, a cartridge fuel tank attachably and detachably disposed on the circulating pipeline and filled with ...

10/26/06 - 20060240309 - Flow shifting in each individual cell of a fuel cell stack
A fuel cell stack utilizes flow shifting of the anode reactant within the individual fuel cells of the fuel cell stack. The anode side of the fuel cells are separated into two or more flow fields. Anode reactant is supplied in varying quantities to the two flow fields so that ...

10/26/06 - 20060240308 - Fuel cell design with an integrated heat exchanger and gas humidification unit
A fuel cell assembly having a flow distribution subassembly that comprises four sets of flow channels, the first set facing an anode for distribution of a fuel reactant to said anode, the second set facing a cathode for distribution of an oxidant to said cathode, the third set in flow ...

10/19/06 - 20060234109 - Composite flow field plates and process of molding the same
An improved flowfield plate design and a process for fabricating such a plate is provided. In accordance with one embodiment of the present invention, a process of fabricating a bipolar plate is provided. The bipolar plate comprises a flowfield defined between opposite, electrically conductive sides of the bipolar plate. According ...

10/19/06 - 20060234108 - Method for producing separator of fuel cell
The present invention provides a method of producing the separator for a fuel cell that is suitable for mass production and that by separating the compression-molding process of pressing a precursor powder comprising carbon powder and thermosetting resin with a press from the resin-setting process of setting the thermosetting resin ...

10/19/06 - 20060234107 - Fuel cell plates and assemblies
A fuel cell plate comprises a basic plate generally adaptable to be used, for a flow of a fluid, as a cathode. The basic plate has essentially a trapezoidal top view, delimitated by a pair of longitudinal margins, and a long and short transversal margins and is provided with inlet ...

10/12/06 - 20060228617 - Fuel cell stack
A fuel cell stack includes a first separator and a second separator, each separator having raised portions and channel portions on a first side and a second side, the channel portions on the first side being opposite the raised portions on the second side and the channel portions on the ...

10/12/06 - 20060228616 - Fluid channel structure for polar plate of fuel cell
A fluid channel structure for polar plate of fuel cell includes a plurality of parallel passages provided in a reaction area of a polar plate, two through holes of fluid inlet and outlet provided on the polar plate, a plurality of communicating channels connecting the through holes to two ends ...

10/12/06 - 20060228615 - Stack configurations for tubular solid oxide fuel cells
A fuel cell unit includes an array of solid oxide fuel cell tubes having porous metallic exterior surfaces, interior fuel cell layers, and interior surfaces, each of the tubes having at least one open end; and, at least one header in operable communication with the array of solid oxide fuel ...

10/12/06 - 20060228614 - Assembly structure of clustering fuel cell
The present utility is related to an assembly structure of clustering fuel cell, comprising the fuel cell, electrical plug board and fuel control unit. The fuel cell has a PCB substrate, at least more than one membrane electrode assembly (MEA), fuel injecting inlet and electrically connecting part. The electrical plug ...

09/28/06 - 20060216574 - Fuel battery
A fuel battery 20 includes a fuel supplier 32, and a battery cell structure 31A and a battery cell structure 31B which are arranged to face each other respectively and to sandwich the fuel supplier 32, and in the battery cell structure 31A and the battery cell structure 31B, fuel ...

09/28/06 - 20060216573 - Power supply incorporating a chemical energy conversion device
A device for generating an electric current comprises a housing, a reaction chamber which is positioned in the housing, and a chemical energy conversion device (“CECD”) which is positioned in the housing adjacent the reaction chamber. In operation, first and second reactants are communicated through respective conduits into the reaction ...

09/28/06 - 20060216572 - Fuel cell
An oxygen-containing gas flow field is formed on a surface of a first metal separator. The oxygen-containing gas flow field is connected between an oxygen-containing gas supply passage and an oxygen-containing gas discharge passage. The oxygen-containing gas flow field comprises oxygen-containing gas flow grooves, and ends of the oxygen-containing gas ...

09/28/06 - 20060216571 - Metal oxide based hydrophilic coatings for pem fuel cell bipolar plates
A flow field plate for a fuel cell that includes a metal oxide coating that makes the plate hydrophilic. In one embodiment, the metal oxide coating is a thin film to maintain the conductive properties of the flow field plate. The metal oxide can be combined with a conductive oxide. ...

09/28/06 - 20060216570 - Durable hydrophilic coatings for fuel cell bipolar plates
A flow field plate for a fuel cell that includes an outer layer of a metal oxide or other material that makes the plate hydrophilic. The particular metal oxide and the thickness of the metal oxide layer are selected so that hydrofluoric acid generated by the fuel cell continuously etches ...

09/21/06 - 20060210863 - Direct methanol fuel cell
For give a direct methanol fuel cell which secures the fuel supply to the catalyst layer, reliably discharge generated carbon dioxide gas, and has excellent electricity generation ability, at least a portion of the anode side flow path is divided by a film having water-repellency and gas permeability to a ...

09/21/06 - 20060210862 - Fuel cell and oxidant distribution plate for fuel cell
To provide a fuel cell and an oxidant distributing plate for the fuel cell. A water created in the fuel cell is used to humidify an oxidant gas and/or a fuel flowing in an opposite passage opposite to a MEA. The fuel cell includes a MEA 1, an oxidant distributing ...

09/14/06 - 20060204828 - Method and apparatus for dielectric bonding of silicon wafer flow fields
According to one embodiment of the invention a fuel cell can be configured so as to directly bond silicon substrate flow field plates directly to one another via a dielectric bond without allowing reactant gases to penetrate the flow field plates during operation of the fuel cell. ...

09/14/06 - 20060204827 - Fuel cell stack with internal fuel manifold configuration
A fuel cell stack includes a plurality of fuel cells, and a plurality of fuel delivery ports. Each of the plurality of fuel delivery ports is positioned on or in the fuel cell stack to provide fuel to a portion of the plurality fuel cells in each stack. ...

09/14/06 - 20060204826 - Geometric feature driven flow equalization in fuel cell stack gas flow separator
A gas flow separator for a fuel cell stack includes a plurality of gas flow channels and a gas flow restrictor located in each channel. Each gas flow restrictor may be a geometric feature which restricts gas flow in each respective channel. ...

09/14/06 - 20060204825 - Current collector plate for an electrochemical cell stack
A current collector plate for an electrochemical cell stack is described. The plate includes a corrosion resistant substrate having a recess in a central region of the inner face. Passageways in the substrate terminate at openings on the inner face to allow process fluids to pass through the plate. An ...

09/14/06 - 20060204824 - System and method for collecting current in an electrochemical cell stack
A system for collecting current in an electrochemical cell stack is described. The system includes an end plate having an outer face facing away from the cell stack and an inner face opposite the outer face. The system also includes a plurality of connection ports on the end plate for ...

09/14/06 - 20060204823 - End assembly for an electrochemical cell stack
An end assembly for an electrochemical cell stack is described. The end assembly includes an end plate having an outer face facing away from the cell stack and an inner face opposite the outer face. Passageways in the end plate that terminate at openings on the inner face allow process ...

08/31/06 - 20060194095 - Method to make conductive hydrophilic fuel cell elements
A flow field plate for a fuel cell that has one or more outer layers that makes the plate more conductive and hydrophilic. In one embodiment, the coating is co-deposited as combination of a conductive material and a metal oxide coating. A suitable conductive material is gold and suitable metal ...

08/17/06 - 20060183015 - Passive micro fuel cell
An efficient and passive micro fuel cell includes an anode plate, a reaction plate, a cathode plate and a condensation plate. The anode plate draws a dilute solution of methanol from a fuel tank to delivery to a series of upper oxidation reaction room through micro-channels by thermal capillarity. The ...

08/03/06 - 20060172177 - Electromagnetic system with a supply plate
The present invention relates to an electrochemical system (1) as well as to a supply plate (2) which is contained in this system. At least one supply plate is provided in this electrochemical system, wherein the supply plate on a first flat side comprises a first flowfield, and on a ...

08/03/06 - 20060172176 - Method and apparatus for thermal, mechanical, and electrical optimization of a solid-oxide fuel cell stack
A solid-oxide fuel cell stack assembly comprising a plurality of sub-stacks, preferably two sub-stacks each containing one-half the total number of fuel cells. Cathode air and fuel gas are passed through the first sub-stack, wherein they are partially reacted and also heated. The exhaust cathode air and the exhaust fuel ...

07/06/06 - 20060147787 - Separator for fuel cell and fuel cell using it
The present invention can achieve the prevention of the corrosion of a metal separator, a reduction in contact resistance and an enhancement in cooling effect in a fuel cell. The separator includes an electrically conductive flat plate and two electrically conductive channel plates superposed on each other with the electrically ...

07/06/06 - 20060147786 - Modular fuel cell cassette for forming a solid-oxide fuel cell stack
A modular fuel cell cassette for use in assembling a fuel cell stack comprising a metal separator plate and a metal cell-mounting plate joined at their edges to form a hollow cassette. A fuel cell subassembly is attached to the mounting plate and extends through an opening in the mounting ...

06/29/06 - 20060141333 - Metallic separator for fuel cell and fuel cell including the same
A separator for a fuel cell includes a first layer that includes stainless steel and tungsten and a second layer that includes stainless steel and tungsten. The first layer contains more tungsten than the second layer so that the separator has anticorrosion properties specifically tailored to the environment of the ...

06/29/06 - 20060141332 - Fuel cell stack assembly
An exemplary fuel cell device assembly is a fuel cell stack assembly comprising: (i) a plurality of fuel cell packets, each of the packets comprising (a) a frame and (b) two planar electrolyte-supported fuel cell arrays, the fuel cell arrays arranged such that anode side of one fuel cell array ...

06/29/06 - 20060141331 - Fuel cells evaporative reactant gas cooling and operational freeze prevention
Fuel cells (38) have water passageways (67; 78, 85; 78a, 85a) that provide water through reactant gas flow field plates (74, 81) to cool the fuel cell. The water passageways may be vented to atmosphere (99), by a porous plug (69), or pumped (89, 146) with or without removing any ...

06/29/06 - 20060141330 - Fuel cells evaporatively cooled with water carried in passageways
Fuel cells (38) have minute water passageways (67) that provide water through one or both reactant gas flow field plates (74, 82) of each fuel cell, whereby the fuel cell is cooled convectively. The water passageways (67; 78, 85; 78a, 85a) may be vented by a porous plug (69), or ...

06/29/06 - 20060141329 - Fuel cell demineralizers integrated with coolant accumulator
The water transport plates (8) of a stack of fuel cells (9) receive water from an accumulator (11) which has a vent (17) within which demineralizers (33) are disposed. The entrance to the accumulator has a conical baffle which disrupts the flow of water entering the accumulator, thereby acting as ...

06/29/06 - 20060141328 - Z-axis electrically conducting flow field separator
A flexible flow field separator includes a substrate layer formed of a flexible material and having first and second surfaces. A structured flow field pattern is defined on the first surface of the substrate layer. The structured flow field pattern defines one or more fluid channels. The separator includes a ...

06/29/06 - 20060141327 - Electrically balanced fluid manifold assembly for an electrochemical fuel cell system
An electrically balanced fluid manifold assembly for supplying a fluid to an electrochemical fuel cell system comprising at least two fuel cell stacks electrically connected in series, each fuel cell stack comprising an inlet fluid port and an outlet fluid port, the manifold assembly comprising: a primary inlet fluid line; ...

06/29/06 - 20060141326 - Integrated current collector and electrical component plate for a fuel cell stack
An integrated current collector and electrical component plate for a fuel cell stack is disclosed, comprising a printed circuit board comprising the following layers: a current collection layer, comprising a current collector; a first insulation layer, comprising a first surface and a second surface; an electrical component layer, comprising an ...

06/29/06 - 20060141325 - Dielectric frame assembly and fuel cell manifold
An assembly having a dielectric frame which utilizes a plurality of segments, each segment having opposing first and second surfaces and first and second ends portions. Each of the first and second end portions has an end surface and a cutout extending from the end surface of the end portion ...

06/22/06 - 20060134503 - Pillared fuel cell electrode system
A fuel cell system includes multiple fuel cells. Each fuel cell may be a proton exchange membrane fuel cell that is arranged to optimize the performance of the fuel cell. The fuel cells may include silicon wafer substrates that define flow channels through the fuel cells for hydrogen and oxidant ...

06/22/06 - 20060134502 - Bipolar plate for a fuel cell
The invention relates to a bipolar plate for a fuel cell, the plate being made up of two half-plates assembled one against the other via their inside faces, each half-plate including in its inside face at least a first groove and a second groove that are spaced apart from each ...

06/22/06 - 20060134501 - Separator for fuel cell, method for preparing the same, and fuel cell stack comprising the same
The metal separator for a fuel cell of the present invention includes a metal substrate having reactant flow pathways and an electro-conductive anti-corrosion coating layer. The electro-conductive anti-corrosion coating layer covers the surface of the metal substrate on which the reactant flow pathways are formed. The coating layer may include ...

06/22/06 - 20060134500 - Fuel cell comprising current collectors integrated in the electrode/membrane/electrode stack
The invention relates to a fuel cell with a stack comprising an electrolytic membrane (4), with front and rear faces (4a, 4b) on which first and second current collectors (13, 15) are respectively arranged, each comprising a metallic deposit and provided with a number of transverse passages. First and second ...

06/15/06 - 20060127744 - Separator for fuel cell and fuel cell using it
The present invention provides a separator for a fuel cell constructed using a metallic pressed plate, in which a gas channel from a manifold to an electrode surface is formed simply, and a good sealing characteristic is realized. The separator is comprised of a metallic pressed plate, a resinous frame ...

06/15/06 - 20060127743 - Fuel delivery apparatus of direct liquid feed fuel cell
A fuel delivery apparatus for a direct liquid feed fuel cell is provided. The fuel delivery apparatus includes a plate stack formed by a one or more double-sided plates positioned between opposing end plates. Both sides of the one or more double-sided plates, and the interior side of each end ...

06/15/06 - 20060127742 - Enhanced flowfield plates
The present invention is directed to mitigating overuse of limited membrane regions in electrochemical conversion assemblies, particularly under cold start conditions. In accordance with one embodiment of the present invention, the anode and/or cathode flowfield plates of an electrochemical conversion assembly are configured such that the fluid header region defines ...

06/15/06 - 20060127741 - Frame elements for monopolar fuel cell stacks
The present invention relates to frame elements for monopolar fuel cell stacks, permitting a simplified electrical wiring and/or a simplified and improved assembly of monopolar fuel cell stacks. They permit a significant miniaturization of monopolar arrangements. ...

06/15/06 - 20060127740 - Oxidant flow system for submerged metal air electrochemical cell
A system is provided for efficiently and conveniently circulating oxidant (e.g., air) across an air cathode of a sub-merged or partially submerged electrochemical cell. The electrochemical cell includes an air inlet in gaseous communication with a surface of the air cathode. A cathode frame is provided having designated passageways for ...

06/15/06 - 20060127739 - Plate elements for fuel cell stacks
The invention relates to a plate element for a fuel cell stack which comprises a frame region and at least one inner region which is surrounded by the frame region. In addition, it has a plurality of webs which extend from the frame region into the at least one inner ...

06/08/06 - 20060121331 - Power supply apparatus having plurality of planar fuel cell assemblies connected in stack form
A power supply apparatus comprising a plurality of planar fuel cell assemblies is disclosed. Each planar fuel cell assembly comprises two fuel cell members, a channel-forming member interposed between the two fuel cell members and defining a first channel for flowing a fluid fuel along with the two fuel cell ...

06/08/06 - 20060121330 - Method for forming a separator plate for a fuel cell, and separator plate
The invention relates to a method for forming a separator plate for a fuel cell, which separator plate has a number of projecting sections. According to the invention, the projecting sections in the separator plate are formed by a metal plate being pressed onto a die having a number of ...

06/01/06 - 20060115708 - Fuel cell casing and fuel cell
The fuel cell casing includes a plural stacked units. Each unit includes a base body having a concavity, for accommodating a membrane electrode assembly; a first fluid channel formed in the base body; a first wiring conductor formed in the base body; a lid body for sealing concavity hermetically; a ...

06/01/06 - 20060115707 - Fuel cell casing and fuel cell
The fuel cell casing includes a plural stacked units. Each unit includes a base body having a concavity, for accommodating a membrane electrode assembly; a first fluid channel formed in the base body; a first wiring conductor formed in the base body; a lid body for sealing concavity hermetically; a ...

06/01/06 - 20060115706 - Polymer electrolye fuel cell and separator for polymer electrolyte fuel cell
In a polymer electrolyte fuel cell wherein a plurality of unit cells are arranged in a flat manner oriented in the same direction, and the prescribed adjacent unit cells are electrically connected in series so as to connect the plurality of unit cells in series, a flat-type polymer electrolyte fuel ...

06/01/06 - 20060115705 - Bipolar plate and direct liquid feed fuel cell stack
A bipolar plate and a direct liquid feed fuel cell stack are provided. The bipolar plate includes a manifold that is coupled with the fuel/oxidant path holes and a plurality of flow channels that are coupled with the manifold. The flow channels are divided into a plurality of groups, where ...

05/25/06 - 20060110650 - Fuel cell stack
A fuel cell stack includes a stack body, an end separator, a terminal plate, an insulating plate, and an end plate provided at one end of the stack body in a stacking direction. The insulating plate has a recess for accommodating the terminal plate. Further, the insulating plate has a ...

05/25/06 - 20060110649 - Fuel cell stack
A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells in a stacking direction. At one end of the stack body, first and second dummy cells are provided. At the other of the stack body, third and fourth dummy cells are provided. Each ...

05/25/06 - 20060110648 - Separator for fuel cell system, and method for preparing the same
A metal separator for a fuel cell of the present invention includes a metal substrate having a reactant flow pathway, and a metal nitride coating layer. The metal nitride coating layer covers the surface of the metal substrate on which a reactant flow pathway is formed and slurry-coated. A metal ...

05/25/06 - 20060110647 - Solid oxide fuel cell with external manifolds
A solid oxide fuel cell stack may include repeating fuel cell units each having a planar fuel cell, an interconnect, a cathode contact layer disposed between sealing strips, and an anode contact layer disposed between sealing strips. The sealing strips have end extensions which overlap with corner extensions on the ...

05/18/06 - 20060105224 - Fuel cell system and method for operating a fuel cell system
A fuel cell system has a fuel cell stack composed of a plurality of fuel cells with a cathode side having a cathode inlet and a cathode outlet and an anode side having an anode inlet and an anode outlet. It is possible for a hydrogen-containing medium to be fed ...

05/18/06 - 20060105223 - Bipolar plate and direct liquid feed fuel cell stack
A bipolar plate for fuel cells includes a plurality of flow paths in which fuel flows. The flow paths include a first flow path formed by a plurality of flow channels and a second flow path formed by a plurality of islands. A direct liquid fuel cell stack comprises the ...

05/18/06 - 20060105222 - Hydrophilic surface modification of bipolar plate
A bipolar plate having hydrophilic surfaces is disclosed. The bipolar plate includes multiple surfaces including channels having channel surfaces. A hydrophilic coating is provided on the surfaces to enhance the water management capabilties of a fuel cell. ...

05/11/06 - 20060099481 - Electroconductive polymer coating on electroconductive elements in a fuel cell
A bipolar plate for use in a proton exchange membrane fuel cell having an electrically conductive polymer coated on at least one region of a surface of the plate in contact with a flow field. The coated region is hydrophobic or hydrophilic as compared to an uncoated region of the ...

05/04/06 - 20060093891 - Flow field design for high fuel utilization fuel cells
A flow field forming one wall of a channel in a flow field plate of a solid oxide fuel cell, the flow field includes a flat substrate having a patterned array of differently-shaped flow barriers projecting from the substrate into the channel, the flow field channel decreases in cross-sectional area ...

04/27/06 - 20060088756 - Fuel cell system
A fuel cell system includes a fuel cell stack, a gas liquid separator, a first drain channel, and a second drain channel. The gas liquid separator is connected to a fuel gas discharge passage of the fuel cell stack through a fuel gas discharge channel. The first drain channel is ...

04/27/06 - 20060088755 - Bipolar plate
A bipolar plate has a multi-layered structure including an inner metallic layer and at least one outer metallic, corrosion-resistant layer splatted, embedded, diffused and interlocked into the inner metallic layer. ...

04/27/06 - 20060088754 - Fuel cell system
The present discloses a fuel cell system comprising a plurality of individual fuel cells combined together to form an elongated fuel cell stack, wherein each of the individual fuel cells is divided into at least two separable isoelectric zones by insulated means, so that after the individual fuel cells are ...

04/13/06 - 20060078782 - Single-pass, high fuel concentration, mixed-reactant fuel cell generator apparatus and method
A high concentration fuel mixed with oxidant is used to operate a fuel cell generator equipped with anode reaction and cathode reaction selective catalysts, wherein the fuel is substantially consumed in a single pass through the cells. ...

03/30/06 - 20060068267 - Modification of membrane electrode assembly
A membrane electrode assembly for an electrochemical cell assembly is provided with a modified catalyst layout. The modified catalyst layout improves reactant fluid flow along the membrane electrode assembly, reduces wear on the membrane electrode assembly and improves electrochemical cell efficiency during operation. ...

03/30/06 - 20060068266 - Electrochemical cell bipolar plate
A bipolar plate for an electrochemical cell is disclosed. The bipolar plate includes a unitary plate having first and second inlet ports, first and second outlet ports, first flow channels, and second flow channels. A first inlet header channel at one end of the first flow channels is in fluid ...

03/30/06 - 20060068265 - Electrochemical cell bipolar plate
A bipolar plate for an electrochemical cell having a first layer, a second layer, and a third layer is disclosed. The first layer has a first plurality of through channels oriented in a first direction. The second layer has a second plurality of through channels oriented in a second different ...

03/23/06 - 20060063060 - Graphite/metal foil/polymer substrate laminate for low contact resistance bipolar plate application
A separator plate for a PEM fuel cell and a method of making the same includes providing a sheet of material having through plane passages formed therein. A sheet of graphite is placed on each of a first face and a second face of the sheet of material to form ...

03/09/06 - 20060051654 - Bipolar plate having offsets
A bipolar plate for a PEM fuel cell is disclosed. The plate includes a plurality of channels, wherein the ends of the channels are staggered. The plate also includes a plurality of tunnels, wherein the ends of the tunnels are staggered. The plate further includes a cathode and an anode, ...

03/02/06 - 20060046132 - Fluid flow path for stamped bipolar plate
A stamped bipolar plate of a fuel cell stack includes a first stamped plate half having a first reactant flow field formed therein, a portion of which defines a first reactant header region. A second stamped plate half has a first coolant flow field formed therein, a portion of which ...

03/02/06 - 20060046131 - Fuel cell apparatus improvements
An electrochemical cell assembly with structural improvements for improving cell operation. The electrochemical cell assembly may include at least one of an extended MEA and chamfered edges on the flow field plates for preventing the shorting of the anode and cathode flow field plates. Further, the flow field plates may ...

03/02/06 - 20060046130 - Flexible bipolar plate
The present invention provides for a construction for a bipolar plate for a fuel cell stack that enables the bipolar plate to be a more compliant member in the fuel cell stack. The bipolar plate can be configured to provide varying levels of compliance, as demanded by the design of ...

02/23/06 - 20060040167 - Components for electrochemical devices including multi-unit device arrangements
Systems for interconnecting two or more electrochemical devices such as fuel-to-energy conversion devices are described. A unitary manifold structure can include a manifold for delivery of a reactant gas to two or more devices, and/or electrical circuitry addressing the two or more devices. Electrical circuitry can be provided in combination ...

02/16/06 - 20060035135 - Modular fuel-cell stack assembly
A modular multi-stack fuel-cell assembly in which the fuel-cell stacks are situated within a containment structure and in which a gas distributor is provided in the structure and distributes received fuel and oxidant gases to the stacks and receives exhausted fuel and oxidant gas from the stacks so as to ...

02/09/06 - 20060029856 - Modular electrochemical power system
Electrochemical power systems of modular design are provided. In accordance with one embodiment of the present invention, an electrochemical power system is provided comprising a container, at least one container reactant port, at least one container electrical power output port, module mounting hardware within the container, and a set of ...

02/02/06 - 20060024561 - Fuel cell stack
A terminal plate, an insulating plate, and an end plate are stacked together. A rectangular recess is formed at the center of the insulating plate. The terminal plate is placed in the recess. An oxygen-containing gas supply passage, a coolant supply passage, a fuel gas discharge passage, a fuel gas ...

02/02/06 - 20060024560 - Separator and cell using the same for use in solid polymer electrolyte fuel cell
A separator for use in a solid polymer electrolyte fuel cell, including a membrane/electrode assembly including a fuel electrode and an oxidant electrode disposed on either side of a solid polymer electrolyte membrane; a first separator superposed against a surface of the fuel electrode forming a fuel gas flow passage; ...

02/02/06 - 20060024559 - Isolated and insulated stack end unit inlet/outlet manifold headers
The present invention isolates the fluid streams flowing into and out of a fuel cell stack from the terminal plates so that the fluid streams and terminal plates do not come into contact with one another. The prevention of the fluid streams from contacting the terminal plate eliminates corrosion concerns ...

02/02/06 - 20060024558 - Low profile electrochemical cell
An electrochemical cell is disclosed having a membrane electrode assembly (MEA), a first cell separator plate, a second cell separator plate, and a carbon layer with integrated flowchannels. The MEA includes a first electrode, a second electrode, and a membrane disposed between and in fluid communication with the first and ...

01/26/06 - 20060019144 - Channel-incorporating pedestal and method for producing same
A channel-incorporating pedestal comprising a first plate and a second plate joined together, incorporating a groove, which is formed on a joining surface of the first plate, as a channel for a fluid, and bringing the groove into communication with an instrument, which is placed on a surface of the ...

01/19/06 - 20060014071 - Internally gas regulated fuel cell
A fuel cell includes a membrane electrode assembly (MEA) and at least one bipolar plate having an anode-side gas distributor structure for distributing anode reactants, a cathode-side gas distributor structure for distributing cathode reactants, and a guide passage structure for distributing a cooling medium. At least one of the anode-side ...

01/12/06 - 20060008696 - Nanotubular solid oxide fuel cell
A membrane electrode assembly (MEA) having a nano-tubular patterned structure and having solid (instead of porous) electrode layers is provided. Increased mechanical strength is provided by the use of solid electrode layers. The electrode layers are sufficiently thin to permit the flow of reactants to the electrolyte. The nano-tubular pattern ...

01/12/06 - 20060008695 - Fuel cell with in-cell humidification
A fuel cell plate integrating an active flow field zone for carrying out electrochemical reaction and at least one humidification zone for humidifying reactant stream. The area of the humidification field is proportionally designed to the fuel cell active flow field so that an adequate humidity and temperature can be ...

01/05/06 - 20060003220 - Fuel cell
An oxygen-containing gas flow field for supplying an oxygen-containing gas from an oxygen-containing gas supply passage to an oxygen-containing gas discharge passage is formed on a first metal plate. The oxygen-containing gas flow field includes oxygen-containing gas flow grooves as serpentine flow grooves having two turn regions T1, T2. The ...

12/29/05 - 20050287415 - Separator for polymer electrolyte fuel cell, polymer electrolyte fuel cell, method of evaluating separator for polymer electrolyte fuel cell, and method of manufacturing separator for polymer electrolyte fuel cell
A separator for a polymer electrolyte fuel cell, which contains electrically conductive carbon and a binder that binds the electrically conductive carbon, comprises a reaction gas passage formed on at least a main surface thereof, wherein a water droplet falling angle of a surface the reaction gas passage is not ...

12/22/05 - 20050282060 - Fuel cell endplate system
An endplate assembly is connected to a fuel cell stack. An endplate assembly has an external surface and an internal surface. The internal surface faces toward the fuel cell stack and the external surface is opposite the internal surface and faces away from the fuel cell stack. The endplate assembly ...

12/15/05 - 20050277013 - Solid polymer type fuel cell, metal separator for fuel cell, and kit for fuel cell
The present invention provides a fuel cell employing a metal separator in which low gas pressure loss, high hydrogen utilization factor operation and long term power generation are possible. The fuel cell according to the present invention is constituted by laminating a plurality of units, the units combining a metal ...

12/01/05 - 20050266296 - Stack having improved cooling structure and fuel cell system having the same
A fuel cell system includes a fuel supply unit for supplying fuel, an air supply unit for supplying air, a coolant supply unit for supplying coolant, and a stack having an electricity generator in which separators are disposed on both surfaces of a membrane-electrode assembly so as to generate electric ...

12/01/05 - 20050266295 - Fuel cell separator, fuel cell device, and electronic applied device
Fuel cell separation, fuel cell device, and electronic applied device technical field are provided. A fuel cell separator capable of making a fuel cell device compact and reducing variations in air supply amount to generating cells. Oscillating fans as fluid oxidant supplying means are respectively provided at openings of channels. ...

11/24/05 - 20050260482 - Flow field plate arrangement
Aspects of some embodiments of the present invention provide flow field plates that have been designed to include a flow field for uniformly distributing both a process gas/fluid and heat produced by an electrochemical reaction involving the process gas/fluid over an area covered by the flow field. Thus, for some ...

11/17/05 - 20050255369 - Bonded polyimide fuel cell package
Described herein are processes for fabricating microfluidic fuel cell systems with embedded components in which micron-scale features are formed by bonding layers of DuPont Kapton™ polyimide laminate. A microfluidic fuel cell system fabricated using this process is also described. ...

11/17/05 - 20050255368 - High surface area micro fuel cell architecture
The present invention relates to compact and high power density fuel cells. The fuel cells generate electrical energy and include a three-dimensional (3-D) architecture. The 3-D architectures include active surfaces whose dimensions may be varied during fuel cell design in three dimensions. Fabrication of the 3-D architectures may use wafer-processing ...

11/17/05 - 20050255367 - Fuel cell, separator unit kit for fuel cell, and fuel cell generating unit kit
A fuel cell includes multiple generating units layered in multiple, each unit including an electrolyte membrane electrode assembly, gas diffusion layers placed to sandwich the assembly, and a pair of separator units placed outside the gas diffusion layers, wherein a flow channel space is formed between the separator units and ...

11/17/05 - 20050255366 - Variable active area for fuel cell
An electrochemical fuel cell stack assembly having a variable active area. The fuel cell stack uses a blocking member to selectively block the flow of reactants through channels of the flow fields of the anode and/or cathode flow paths. Blocking portions of the flow paths allows the fuel cell stack ...

11/17/05 - 20050255365 - Fuel cell
A fuel cell has an anode electrode (3), a cathode electrode (5), the membrane electrolyte (4) sandwiched by the anode and cathode electrodes, two separators (1, 7), a first current collector (2) and a second current collector (6). The two separators (1, 7) each having a flat plate-shaped porous body ...

11/17/05 - 20050255364 - Bipolar plate of fuel cell
In a bipolar plate of a fuel cell including a plate having a certain area and thickness; inflow and outflow buffer grooves respectively formed at both sides of the plate so as to have a certain area and depth; plural channels for connecting the inflow buffer groove and the outflow ...

11/10/05 - 20050249999 - Press separator for fuel cell
A press separator made of a stainless steel sheet, for providing excellent corrosion resistance and electric conductivity by a combination of a passive coating and a deposition of boride or boron carbide, restriction corrosion without separation or coming-off, by press forming, of depositions, and ensuring an extended service. A stainless ...

10/27/05 - 20050238946 - Single chamber solid oxide fuel cell architecture for high temperature operation
The present invention provides a solid oxide fuel cell system comprising at least one fuel cell and at least one gas flow channel to deliver a reactant mixture. The fuel cell comprises at least one chamber to house at least one anode, at least one cathode, and at least one ...

10/27/05 - 20050238945 - Fuel cell system
A fuel cell system including a fuel cell, constructed as an integrated stack comprising a laminate, produced by stacking a plurality of cells between two end plates, and a fuel supply device for supplying fuel to the fuel cell. In this fuel cell system, a plurality of individual fuel supply ...

10/27/05 - 20050238944 - Fuel cell system
A fuel cell system that includes a stack includes a plurality of generators for producing electrical energy by an electrochemical reaction of hydrogen and oxygen. The generators are connected in series. In addition, the fuel cell system comprises a fuel supply assembly for supplying fuel comprising hydrogen to the generators, ...

10/27/05 - 20050238943 - Fuel cell stack
To prevent the flooding phenomenon at the cathode in a unit cell where the temperature is relatively low or the supply of air is small, a fuel cell stack includes at least three flat unit cells stacked with separators interposed therebetween, the unit cells comprising an anode, a cathode and ...

10/27/05 - 20050238942 - Fuel cell and separator thereof
A fuel cell includes a plurality of fuel cell units. Each fuel cell unit includes an electrode assembly having electrodes and an electrolyte, a pair of separators, and gas sealing members. At least two of the fuel cell units include at least two electrode assemblies and at least three separators. ...

10/27/05 - 20050238941 - Fuel cell separator and its manufacturing method
Fuel cell separators (18) sandwich an anode (13) and a cathode (14) which are installed along both sides of an electrolyte film (12) and diffusion layers (16, 16). The separators (18) are made of a mixture material containing a thermoplastic resin selected from ethylene-vinyl acetate copolymers and ethylene-ethyl acrylate copolymers ...

10/20/05 - 20050233201 - Polymer electrolyte fuel cell
A fuel cell includes a membrane electrode assembly 21 and a bipolar plate 24 disposed outside the membrane electrode assembly 21. The bipolar plate 24 is porous, and has first gas passages 33 formed on the top surface through which gas is passed, second gas passages 35 formed on the ...

10/20/05 - 20050233200 - Process to manufacture an ion-permeable and electrically conducting flat material, the material obtained according to the process, and fuel cells
A fibrous, flat and ion-permeable material made of synthetic fibers, in particular of synthetically spun fibers such as acrylic fibers or aramid fibers, is processed into staple fibers of a specific length and then fibrillated. In a wet-laid inclined machine (paper machine), the fibrillated fibers are formed into a continuous ...

10/06/05 - 20050221160 - Separator for fuel cell, method for preparing the same, and fuel cell comprising the same
A separator for a fuel cell contains nano-graphite thin plates with a thickness of about 3 to 30 nm or clusters of the nano-graphite thin plates. As such, the separator is capable of providing enough electrical conductivity with only a small amount of graphite, is light in weight, and has ...

10/06/05 - 20050221159 - Liquid fuel cell
A liquid fuel cell includes a cell stack unit containing at least one separator that includes a liquid fuel flow path and an oxidizer flow path, an end separator stacked on an outermost layer of the cell stack unit and having a liquid fuel inlet, a resin-made manifold plate including ...

10/06/05 - 20050221158 - Separator and fuel cell using thereof
A fuel cell is provided therein with a metal separator for aiming at preventing corrosion and at reducing a contact resistance. The separator is compose of conductive passage board formed therein with passages, and a metal planar panel, the passage boards and the metal planar panel being superposed with one ...

10/06/05 - 20050221157 - Fuel cell layer with reactor frame
The present invention relates to a fuel cell layer with frames with a central axis comprising: at least a first and second unit fuel cell, wherein the first and second unit fuel cells are disposed adjacent each other to form a front side and back side of the fuel cell ...

10/06/05 - 20050221156 - Method for forming compact chemical reactors with reactor frames
The invention relates to a method making a compact chemical reactor with high aspect ratio cavities comprising the steps: forming at least one intermediate assembly, consisting of: at least one frame comprising: a process layer, a perimeter barrier and at least one low aspect ratio cavity; at least one frame ...

10/06/05 - 20050221155 - Compact fuel cell layer
The fuel cell layer with a central axis includes a first and a second unit fuel cell, an oxidant plenum comprising an oxidant; and a fuel plenum comprises a fuel; and each unit fuel cell comprises: a first and second process layer; a first cavity and second cavity formed between ...

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