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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 11949110 B1

PDFFull Text
Date of Patent:
Apr. 02, 2024

Filed:

Aug. 27, 2018

Electrolytic copper foil, method for manufacturing the same, and anode for lithium secondary battery of high capacity

Applicant:

Kcf Technologies Co., Ltd., Anyang-si, KR;

Inventors:

Seung Min Kim, Anyang-si, KR;

An Na Lee, Anyang-si, KR;

Assignee:

SK NEXILIS CO., LTD., Jeongeup-si, KR;

Attorney:

K&L Gates LLP

Primary Examiner:

Brian R Ohara

Assistant Examiner:

Emily Elizabeth Freeman

Int. Cl.
CPC ...
H01M 4/66 (2006.01); C25D 1/04 (2006.01); C25D 3/38 (2006.01); C25D 5/48 (2006.01); H01M 4/04 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/661 (2013.01); C25D 1/04 (2013.01); C25D 3/38 (2013.01); C25D 5/48 (2013.01); H01M 4/0438 (2013.01); H01M 10/0525 (2013.01);
Abstract

The present invention relates to a copper foil current collector having superior adhesion to an active material of a Li secondary battery. The electrolytic copper foil of the present invention having a first surface and a second surface comprises: a first protective layer at the first surface; a second protective layer at the second surface; and a copper film between the first and second protective layers, wherein an oxygen-containing part at the second surface has a thickness (OT) of not less than 1.5 nm. According to the present invention, an electrolytic copper foil current collector for a Li secondary battery, which has low electric resistance and high adhesion to an active material, can be provided.

Find Patent Forward Citations

Kim, Seung. (2024). Electrolytic copper foil, method for manufacturing the same, and anode for lithium secondary battery of high capacity (U.S. Patent No. 11949110). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11949110

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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