Lithium secondary battery with excellent performance

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United States of America Patent

PATENT NO 9564635
APP PUB NO 20140363714A1
SERIAL NO

14465963

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Abstract

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Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the cathode includes a spinel-structure lithium manganese composite oxide represented by Formula 1 below as a cathode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V:

description='In-line Formulae' end='lead'LixMyMn2−yO4−zAz  (1)description='In-line Formulae' end='tail'

    wherein 0.9≦x≦1.2, 0

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Patent Owner(s)

Patent OwnerAddress
LG ENERGY SOLUTION LTDSEOUL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Jae Hyun Daejeon, KR 171 814
Lee, Youn Kyoung Seoul, KR 6 8
Lim, Soo Hyun Daejeon, KR 15 47

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