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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.:

US 12770859 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

May. 31, 2023

Positive electrode material, preparation method thereof, and secondary battery including same

Applicant:

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

Inventors:

Qiang Chen, Ningde City, CN;

Qi Wu, Ningde City, CN;

Jingpeng Fan, Ningde City, CN;

Tao Huang, Ningde City, CN;

Na Liu, Ningde City, CN;

Assignee:

CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;

Attorney:

K&L Gates LLP

Primary Examiner:

Yoshitoshi Takeuchi

Int. Cl.
CPC ...
H01M 4/52 (2010.01); C01G 51/82 (2025.01); C01G 53/42 (2025.01); C01G 53/82 (2025.01); H01M 10/0525 (2010.01); H01M 50/204 (2021.01);
U.S. Cl.
CPC ...
C01G 53/82 (2025.01); C01G 51/82 (2025.01); H01M 10/0525 (2013.01); H01M 50/204 (2021.01); C01P 2004/61 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01);
Abstract

A positive electrode material, including a core and a shell layer are provided. In some embodiments, a molecular formula of the core is LiNiCoMnM1O, 0.8≤x<1.0, 0<y<0.2, 0<a<0.1, 0≤z<0.1, and M1 is selected from at least one of Al, Ta, and B; and a molecular formula of the shell layer is LiCoAlNbM2O, 0.85≤m<1.0, 0<n<0.15, 0<b<0.1, 0.001≤1-m-n≤0.02, 0≤c<0.05, and M2 is selected from at least one of W, Mo, Ti, Zr, Y, and Yb.

Find Patent Forward Citations

Chen, Qiang. (2026). Positive electrode material, preparation method thereof, and secondary battery including same (U.S. Patent No. 12770859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12770859

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