Cathode active material for lithium secondary battery, method of fabricating the same, and lithium secondary battery including the same

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United States of America Patent

PATENT NO 9871250
SERIAL NO

14478580

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Abstract

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Provided are a cathode active material for a lithium secondary battery, a method of fabricating the same, and a lithium secondary battery including the same. The cathode active material includes a lithium composite transition metal oxide represented by Li1+(c-a)/2NiaCobMncO2-xFx (0.1≦c−a≦0.4, 0.13≦a≦0.3, 0.03≦b≦0.2, 0.4≦c≦0.6, (a+b+c)+(1+(c−a)/2)=2, 02MnO3. Since the lithium secondary battery including the cathode active material has a large capacity and generates less gas, lifespan characteristics and high rate capability are significantly improved, and especially voltage variation during charging and discharging operations is small.

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Patent Owner(s)

  • SAMSUNG SDI CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Se Won Seoul, KR 17 58
Moon, Jong Seok Chungcheongnam-do, KR 2 9
Shim, Jae Ha Gyeonggi-do, KR 5 15
Yu, Tae Hwan Seoul, KR 8 24

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