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:
Mar. 17, 2026
Filed:
Nov. 10, 2022
Applicant:
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Inventors:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/667 (2013.01); H01M 4/0404 (2013.01); H01M 4/663 (2013.01); H01M 4/668 (2013.01);
Abstract
A composite positive electrode current collector may include a protective layer, a graphene metallization layer and a conductive layer arranged in sequence on a surface of an insulation layer. The protective layer may include a metal oxide, and the graphene metallization layer may contain highly reduced graphene oxide having an oxygen-containing organic group.