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Polyanion active materials and method of forming the same




Title: Polyanion active materials and method of forming the same.
Abstract: A method of forming a polyanion active material that includes providing a carbon source, providing a mobile ion source, providing an active metal material, providing a network material, providing a flux material, and mixing the various materials. In one aspect, the mixing step may include grinding or pulverizing materials to a uniform fine mixture. In one aspect, a ball mill may be utilized to mix the components. Following the mixing of the materials, the mixture is heated to a predetermined temperature in a non-oxidizing atmosphere to form a reaction product. In one aspect, the mixture is heated to a temperature above a melting temperature of the flux material. In this manner, the flux material provides a medium in which the various reactants may react to form the desired reaction product. Following the heating of the mixture the reaction product is washed, forming a carbon coated polyanion active material. Also disclosed is a polyanion active material that includes the in situ reaction product of a carbon source, mobile ion source, active metal material, network material, and a flux material wherein the polyanion active material includes a carbon coating formed thereon. ...

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USPTO Applicaton #: #20130029227
Inventors: Wei Song, Masaki Matsui, Toshihiko Tani


The Patent Description & Claims data below is from USPTO Patent Application 20130029227, Polyanion active materials and method of forming the same.




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stats Patent Info
Application #
US 20130029227 A1
Publish Date
01/31/2013
Document #
13191028
File Date
07/26/2011
USPTO Class
429221
Other USPTO Classes
2521821, 4292318, 429223, 429224, 4292315
International Class
/
Drawings
3


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20130131|20130029227|polyanion active materials and forming the same|A method of forming a polyanion active material that includes providing a carbon source, providing a mobile ion source, providing an active metal material, providing a network material, providing a flux material, and mixing the various materials. In one aspect, the mixing step may include grinding or pulverizing materials to |Toyota-Motor-Engineering-x26-Manufacturing-North-America-Inc