Cathode active material and lithium secondary battery comprising the same

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United States of America Patent

PATENT NO 9780371
SERIAL NO

13780934

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Abstract

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Disclosed is a cathode active material for secondary batteries comprising one or more compounds having a layered-crystal structure, represented by the following Formula 1, wherein a transition metal layer contains Li, in an amount lower than 20%, based on a total amount of a transition metal site, and a ratio of Ni positioned in a lithium layer, that is, a cation mixing ratio is 1% to 4.5%, based on a total amount of a lithium site in the lithium layer to stably support the layered-crystal structure: (1-s-t)[Li(LiaMn(1-a-x-y)NixCoy)O2]*s[Li2CO3]*t[LiOH] (1), wherein 0

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Patent Owner(s)

  • LG CHEM, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Sung-Kyun Daejeon, KR 36 204
Lim, Jinhyung Daejeon, KR 5 4
Park, Hong Kyu Daejeon, KR 91 1016
Park, Sin Young Daejeon, KR 51 107

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