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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 12683169 B1

PDFFull Text
Date of Patent:
Jul. 14, 2026

Filed:

Jan. 26, 2021

Negative electrode for secondary batteries, and secondary battery

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Kyohei Sakamoto, Osaka, JP;

Nobuhiko Hojo, Osaka, JP;

Masaki Hasegawa, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

WHDA, LLP

Primary Examiner:

Barbara L Gilliam

Assistant Examiner:

Lawrence undefined La Raia, III

Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/02 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/485 (2010.01); H01M 4/58 (2010.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 10/0566 (2010.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/38 (2013.01); H01M 4/386 (2013.01); H01M 4/485 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 4/626 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/0566 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); Y02E 60/10 (2013.01);
Abstract

This negative electrode for secondary batteries is provided with a negative electrode mixture that contains a negative electrode active material, an additive and a conductive agent. The negative electrode active material contains an Si-containing material; the additive contains an alkali metal sulfate salt; and the conductive agent contains carbon nanotubes. The content of the alkali metal sulfate salt in the negative electrode mixture is from 0.0025% by mass to 0.1% by mass relative to the total mass of the negative electrode active material.

Find Patent Forward Citations

Sakamoto, Kyohei. (2026). Negative electrode for secondary batteries, and secondary battery (U.S. Patent No. 12683169). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12683169

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

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