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:
May. 31, 2022
Filed:
Jan. 25, 2019
Applicant:
Kcf Technologies Co., Ltd., Anyang-si, KR;
Inventors:
Assignee:
KCF TECHNOLOGIES CO., LTD., Anyang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 7/06 (2006.01); C25D 1/04 (2006.01); C25D 3/38 (2006.01); H01M 4/66 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
C25D 1/04 (2013.01); C25D 3/38 (2013.01); H01M 4/661 (2013.01); H01M 10/052 (2013.01); Y10T 428/12431 (2015.01);
Abstract
The present invention relates to: an electrolytic copper foil having high dimensional stability and texture stability in a high temperature environment of a process for manufacturing an Li secondary battery; and a manufacturing method therefor. The electrolytic copper foil of the present invention has a thermal expansion coefficient of 17.1-22 μm/(m·° C.) in a temperature region of 30-190° C., has a variation of full width at half maximum of the (220) plane of 0.81-1.19 according to heat treatment for 30 minutes at 190° C., and has a weight deviation of 5% or less in the transverse direction.