Rolled copper foil for lithium ion battery current collector, and lithium ion battery

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11984606
APP PUB NO 20210399309A1
SERIAL NO

17289622

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is a rolled copper foil for a lithium ion battery current collector, which has good adhesion to a negative electrode active material, generates less metal powder during ultrasonic welding, and has a rust prevention property. In the rolled copper foil for a lithium ion battery current collector, a surface of the copper foil has a BTA film, the BTA film has a thickness of 0.6 nm or more and 4.6 nm or less, and the rolled copper foil satisfies the following relationships: 40≤wet tension [mN]/m]+thickness of BTA film [nm]×10≤80; 0.01≤arithmetic average roughness Ra [μm]≤0.25; and wet tension [mN/m]≥35.

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Patent Owner(s)

  • JX METALS CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kudo, Katsuhiro Kanagawa, JP 2 2

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