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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11283080 B1

PDFFull Text
Date of Patent:
Mar. 22, 2022

Filed:

Jan. 15, 2020

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

Applicant:

Chang Chun Petrochemical Co., Ltd., Taipei, TW;

Inventors:

Huei-Fang Huang, Taipei, TW;

Ting-Chun Lai, Taipei, TW;

Kuei-Sen Cheng, Taipei, TW;

Jui-Chang Chou, Taipei, TW;

Yao-Sheng Lai, Taipei, TW;

Assignee:

CHANG CHUN PETROCHEMICAL CO., LTD., Taipei, TW;

Attorney:

WPAT, PC

Primary Examiner:

Carlos Barcena

Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/04 (2006.01); H01M 10/0525 (2010.01); H01M 4/70 (2006.01); C25D 1/04 (2006.01); C25D 3/04 (2006.01); C25D 3/12 (2006.01); C25D 3/22 (2006.01); C25D 3/38 (2006.01); C25D 5/14 (2006.01); C25D 5/16 (2006.01); C25D 5/48 (2006.01); C25D 5/10 (2006.01); B32B 15/01 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); H05K 1/09 (2006.01); H05K 1/18 (2006.01); H05K 3/38 (2006.01); H05K 1/02 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/661 (2013.01); B32B 15/01 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); C25D 1/04 (2013.01); C25D 3/04 (2013.01); C25D 3/12 (2013.01); C25D 3/22 (2013.01); C25D 3/38 (2013.01); C25D 5/10 (2013.01); C25D 5/14 (2013.01); C25D 5/16 (2013.01); C25D 5/48 (2013.01); H01M 4/0469 (2013.01); H01M 4/70 (2013.01); H01M 10/0525 (2013.01); H05K 1/0242 (2013.01); H05K 1/09 (2013.01); H05K 1/18 (2013.01); H05K 1/181 (2013.01); H05K 3/384 (2013.01); H05K 3/389 (2013.01); B32B 2255/06 (2013.01); B32B 2255/205 (2013.01); B32B 2255/28 (2013.01); B32B 2307/202 (2013.01); B32B 2457/08 (2013.01); H01M 2004/027 (2013.01); H05K 2201/0338 (2013.01); H05K 2201/0355 (2013.01); H05K 2201/0373 (2013.01); H05K 2201/10522 (2013.01); H05K 2201/2054 (2013.01); H05K 2203/0307 (2013.01); Y10T 428/12431 (2015.01);
Abstract

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 μm/μmto about 1.35 μm/μm. 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 μm/μmto about 1.35 μm/μm. 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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