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.

Date of Patent:
Sep. 15, 2026

Filed:

Dec. 02, 2022
Applicant:

Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;

Inventors:

Bangrun Wang, Ningde, CN;

Na Liu, Ningde, CN;

Chengdu Liang, Ningde, CN;

Yongchao Liu, Ningde, CN;

Xin Sun, Ningde, CN;

Haotian Xie, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); C01G 53/50 (2025.01); H01M 4/02 (2006.01); H01M 4/131 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/62 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); C01P 2002/72 (2013.01); H01M 2004/028 (2013.01);
Abstract

This application discloses a lithium supplement for lithium secondary batteries, a preparation method thereof, and a lithium secondary battery, a battery module, a battery pack, and an apparatus. Tests show that the lithium supplement of this application can maintain its own stability and low metal dissolution during long-term use of lithium secondary batteries, effectively improving energy density of lithium secondary batteries and ensuring a low self-discharge rate of lithium secondary batteries, thereby ensuring that the lithium secondary battery has high energy density, long cycle life, and high safety.


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