Lithium secondary battery

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United States of America Patent

PATENT NO 10270124
APP PUB NO 20160181599A1
SERIAL NO

14978646

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Abstract

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A lithium secondary battery including a cathode, an anode and a non-aqueous electrolyte. The cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a concentration gradient region between a core part and a surface part thereof. The lithium-metal oxide includes elements M1, M2, and M3. M3 has a concentration gradient region with increased concentration between the core part and the surface part, M1 has a concentration gradient region with decreased concentration between the core part and the surface part, and M2 has a constant concentration from the core part and the surface part. The anode includes graphite having an average lattice distance d002 of 3.356 to 3.365 Å.

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Patent Owner(s)

  • SK INNOVATION CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Han, Kook-Hyun Daejeon, KR 13 34
Hwang, Duck-Chul Suwon-si, KR 53 878
Yoo, Kyung-Bin Daejeon, KR 8 22

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