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, 2025
Filed:
Sep. 21, 2023
Applicant:
Ningde Amperex Technology Limited, Fujian, CN;
Inventor:
Liang Wang, Fujian, CN;
Assignee:
NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2009.12); H01M 4/02 (2005.12); H01M 4/36 (2005.12); H01M 4/38 (2005.12); H01M 4/46 (2005.12); H01M 10/0525 (2009.12);
U.S. Cl.
CPC ...
H01M 4/525 (2012.12); H01M 4/364 (2012.12); H01M 4/382 (2012.12); H01M 4/463 (2012.12); H01M 10/0525 (2012.12); H01M 2004/027 (2012.12); H01M 2004/028 (2012.12);
Abstract
A positive electrode active material, where a surface region of the positive electrode active material includes a specific content of element aluminum. The positive electrode material of this application helps to improve the impedance, cycling performance, and high-temperature storage performance of electrochemical apparatuses under high-voltage operating conditions.