Method for producing positive electrode active material for lithium secondary battery and positive electrode active material for lithium secondary battery produced thereby

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United States of America

PATENT NO 12261288
APP PUB NO 20230074059A1
SERIAL NO

17788897

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Abstract

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A positive electrode active material, a method for producing the same, and a positive electrode and a lithium secondary battery in including the same are disclosed herein. In some embodiments, a method of producing a positive electrode active material includes mixing a lithium transition metal oxide and a carbon-based material having a hollow structure to form a mixture, and mechanically treating the mixture to form a carbon coating layer on the surface of the lithium transition metal oxide, wherein the carbon-based material has a chain shape, and has a specific surface area of 500 m2/g or greater, a graphitization degree (ID/IG) of 1.0 or higher, and a dibutylphthalate (DBP) absorption of 300 mL/100 g or greater.

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Patent Owner(s)

Patent OwnerAddress
LG ENERGY SOLUTION LTDTOWER 1 108 YEOUI-DAERO YEONGDEUNGPO-GU SEOUL 07335

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Tae Gon Daejeon, KR 151 604
Kwak, Min Daejeon, KR 25 4
Lee, Bo Ram Daejeon, KR 75 202
Park, Byung Chun Daejeon, KR 53 349
Yoo, Tae Gu Daejeon, KR 52 42

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