Electrodeposited copper foil, current collector, electrode, and lithium ion secondary battery comprising the same

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United States of America

PATENT NO 11283080
APP PUB NO 20210242467A1
SERIAL NO

17259333

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Abstract

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Provided are an electrodeposited copper foil, a current collector, an electrode, and a lithium-ion secondary battery comprising the same. The electrodeposited copper foil has a deposited side and a drum side opposite the deposited side. In a first aspect, ΔRS between the deposited side and the drum side is at most about 95 MPa, and the deposited side exhibits a Vv in a range from about 0.15 μm3/μm2 to about 1.35 μm3/μm2. In a second aspect, the deposited side has a Sku of about 1.5 to about 6.5 and the deposited side exhibits a Vv in a range from about 0.15 μm3/μm2 to about 1.35 μm3/μm2. The characteristics are beneficial to improve the quality of the electrodeposited copper foil, thereby extending the charge-discharge cycle life of a lithium-ion secondary battery comprising the same.

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Patent Owner(s)

Patent OwnerAddress
CHANG CHUN PETROCHEMICAL CO LTD7F NO 301 SONGJIANG RD TAIPEI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Kuei-Sen Taipei, TW 26 88
Chou, Jui-Chang Taipei, TW 42 76
Huang, Huei-Fang Taipei, TW 14 35
Lai, Ting-Chun Taipei, TW 3 2
Lai, Yao-Sheng Taipei, TW 43 65

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