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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 12113205 B1

PDFFull Text
Date of Patent:
Oct. 08, 2024

Filed:

Nov. 23, 2021

Negative electrode active material, negative electrode, and secondary battery

Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventor:

Naoki Hayashi, Kyoto, JP;

Assignee:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Basia A Ridley

Assistant Examiner:

Heng M. Chan

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 4/624 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01);
Abstract

The negative electrode active material includes a plurality of first negative electrode active material particles. Each of the first negative electrode active material particles includes a central portion including silicon and a covering portion provided on a surface of the central portion. The covering portion includes a (meth)acrylic acid-based polymer and a compound having a siloxane bond. The (meth)acrylic acid-based polymer includes at least one of poly(meth)acrylate or a derivative of poly(meth)acrylic acid.

Find Patent Forward Citations

Hayashi, Naoki. (2024). Negative electrode active material, negative electrode, and secondary battery (U.S. Patent No. 12113205). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12113205

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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