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.:
Date of Patent:
Apr. 14, 2020
Filed:
Jun. 27, 2019
Applicant:
Chang Chun Petrochemical Co., Ltd., Taipei, TW;
Inventors:
Assignee:
CHANG CHUN PETROCHEMICAL CO., LTD., Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21C 37/00 (2006.01); C25D 7/06 (2006.01); C25D 3/38 (2006.01); C25D 5/16 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
C25D 7/0614 (2013.01); C25D 3/38 (2013.01); C25D 5/16 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); Y10T 428/12431 (2015.01); Y10T 428/12438 (2015.01);
Abstract
Electrodeposited copper foils having properties suitable for use as current collectors in lithium-ion secondary batteries are disclosed. The electrodeposited copper foils include a drum side and a deposited side. At least one of the deposited side or the drum side has a root mean square slope (RΔq) in the range of about 0.03 to about 0.23. In this manner, the copper foil has good durability and workability, as well as good performance as current collectors in lithium-ion secondary batteries.