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.:
Date of Patent:
May. 13, 2025
Filed:
Jul. 21, 2020
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/587 (2010.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/587 (2013.01); H01M 4/364 (2013.01); H01M 4/48 (2013.01); H01M 4/624 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
A negative electrode for a secondary battery including a negative electrode active material capable of absorbing and releasing lithium ions. The negative electrode active material includes a first carbon material as a main component, and includes a second carbon material and a silicon-containing material which are present between particles of the first carbon material. The first carbon material has an average particle diameter A, the second carbon material has an average particle diameter B, and the silicon-containing material has an average particle diameter C, satisfying A>C≥B.