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Li-ni-based composite oxide particles for non-aqueous electrolyte secondary battery, process for producing the same, and non-aqueous electrolyte secondary battery

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Li-ni-based composite oxide particles for non-aqueous electrolyte secondary battery, process for producing the same, and non-aqueous electrolyte secondary battery


The present invention relates to Li—Ni-based composite oxide particles comprising Mn, and Co and/or Al, wherein Co and Al are uniformly dispersed within the particles, and Mn is present with a gradient of its concentration in a radial direction of the respective particles such that a concentration of Mn on a surface of the respective particles is higher than that at a central portion thereof. The Li—Ni-based composite oxide particles can be produced by allowing an oxide and a hydroxide comprising Mn to mechanically adhere to Li—Ni-based oxide comprising Co and/or Al; and then heat-treating the obtained material at a temperature of not lower than 400° C. and not higher than 1,000° C. The Li—Ni-based composite oxide particles of the present invention are improved in thermal stability and alkalinity.

Browse recent Toda Kogyo Corporation patents - Hiroshima-ken, JP
USPTO Applicaton #: #20130330626 - Class: 429223 (USPTO) - 12/12/13 - Class 429 


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The Patent Description & Claims data below is from USPTO Patent Application 20130330626, Li-ni-based composite oxide particles for non-aqueous electrolyte secondary battery, process for producing the same, and non-aqueous electrolyte secondary battery.

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stats Patent Info
Application #
US 20130330626 A1
Publish Date
12/12/2013
Document #
File Date
07/24/2014
USPTO Class
Other USPTO Classes
International Class
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