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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 12438151 B1

PDFFull Text
Date of Patent:
Oct. 07, 2025

Filed:

Jul. 09, 2021

Positive electrode active material and its preparation method, sodium ion battery and apparatus containing the sodium ion battery

Applicant:

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

Inventors:

Qian Liu, Ningde, CN;

Yongsheng Guo, Ningde, CN;

Chengdu Liang, ningde, CN;

Wenguang Lin, Ningde, CN;

Assignee:

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

Attorney:

East IP P.C.

Primary Examiner:

Allison Bourke

Assistant Examiner:

Kayla Elaine Clary

Int. Cl.
CPC ...
H01M 4/505 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/525 (2010.01); H01M 10/054 (2010.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); H01M 4/0471 (2013.01); H01M 4/525 (2013.01); H01M 10/054 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

The present application discloses a positive electrode active material and its preparation method, a sodium ion battery and an apparatus containing the sodium ion battery. The positive electrode active material satisfies a chemical formula NaCuMnMO, wherein M is one or more selected from Li, B, Mg, Al, K, Ca, Ti, V, Cr, Fe, Co, Ni, Zn, Ga, Sr, Y, Nb, Mo, Sn, Ba and W, 0≤x≤0.5, 0.1<h≤2, 1≤k≤3, 0≤l≤0.5, and 0≤y≤1, 2≤h+k+l≤3.5, and 0.57≤(2+x)/(h+k+l)≤0.9.

Find Patent Forward Citations

Liu, Qian. (2025). Positive electrode active material and its preparation method, sodium ion battery and apparatus containing the sodium ion battery (U.S. Patent No. 12438151). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12438151

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