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SURFACE AND BULK MODIFIED HIGH CAPACITY LAYERED OXIDE CATHODES WITH LOW IRREVERSIBLE CAPACITY LOSS
SURFACE AND BULK MODIFIED HIGH CAPACITY LAYERED OXIDE CATHODES WITH LOW IRREVERSIBLE CAPACITY LOSS
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机译:具有低不可逆容量损失的表面和本体改性高容量层状氧化阴极
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摘要
The present invention includes compositions, surface and bulk modifications, and methods of making of (1x)Li[Li1/3Mn2/3]O2.xLi[Mn0.5-yNi0.5-yCo2y]O2 cathode materials having an O3 crystal structure with a x value between 0 and 1 and y value between 0 and 0.5, reducing the irreversible capacity loss in the first cycle by surface modification with oxides and bulk modification with cationic and anionic substitutions, and increasing the reversible capacity to close to the theoretical value of insertion/extraction of one lithium per transition metal ion (250-300 mAh/g).
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