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:
Sep. 08, 2026
Filed:
Jan. 15, 2024
Applicant:
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Inventors:
Dong Zhao, Ningde, CN;
Qi Wu, Ningde, CN;
Chongheng Shen, Ningde, CN;
Bangrun Wang, Ningde, CN;
Qiang Chen, Ningde, CN;
Jingpeng Fan, Ningde, CN;
Na Liu, Ningde, CN;
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 53/50 (2025.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/00 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
C01G 53/50 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/00 (2013.01); C01P 2002/08 (2013.01); C01P 2004/61 (2013.01); C01P 2004/84 (2013.01); C01P 2006/12 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract
This application relates to a positive active material, a method for preparing same, an electrode plate, a secondary battery, and an electrical device. The positive active material includes: a core material, including a lithium-rich manganese-based positive electrode material; and a cladding layer, covering an outer surface of the core material, where the cladding layer includes an oxygen-ion conductor and a lithium-ion conductor.