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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 12785077 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Dec. 11, 2024

Negative electrode active material and preparation method therefor, secondary battery and preparation method therefor, and power consuming device

Applicant:

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

Inventors:

Yaqian Deng, Ningde, CN;

Ning Chen, Ningde, CN;

Ruijing Lv, Ningde, CN;

Zhipeng Cheng, Ningde, CN;

Dongyang Shi, Ningde, CN;

Haizu Jin, Ningde, CN;

Baiqing Li, Ningde, CN;

Assignee:

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

Attorney:

K&L Gates LLP

Primary Examiner:

James M Erwin

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/583 (2010.01); H01M 10/0587 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); H01M 4/0404 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/583 (2013.01); H01M 10/0587 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract

A negative electrode active material comprises a carbon-based material and a silicon-based material, wherein a first functional group exists on the surface of the carbon-based material, a second functional group exists on the surface of the silicon-based material, and the first functional group has a charge opposite to that of the second functional group.

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Quick Actions:

Deng, Yaqian. (2026). Negative electrode active material and preparation method therefor, secondary battery and preparation method therefor, and power consuming device (U.S. Patent No. 12785077). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12785077

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