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:
Jul. 08, 2025
Filed:
May. 24, 2023
Applicant:
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Inventor:
Yuqun Zeng, Ningde, CN;
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01B 25/45 (2006.01); H01M 4/131 (2010.01); H01M 4/48 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 10/054 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01B 25/45 (2013.01); H01M 4/131 (2013.01); H01M 4/48 (2013.01); H01M 4/5825 (2013.01); H01M 4/625 (2013.01); H01M 10/054 (2013.01); H01M 2004/028 (2013.01);
Abstract
A positive electrode active material includes a conductive base material and an active substance distributed at the conductive base material. The active substance has a core-shell structure including a core layer material and a shell layer material. The conductive base material includes a carbon material, the core layer material includes a phosphate-based sodium salt material, and the shell layer material includes a metal oxide.