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:
Sep. 30, 2025
Filed:
Mar. 25, 2021
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/485 (2010.01); H01M 4/587 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0402 (2013.01); H01M 4/485 (2013.01); H01M 4/587 (2013.01); H01M 2004/027 (2013.01); H01M 2300/008 (2013.01);
Abstract
A negative electrode for an electrochemical device includes a negative electrode core material and a negative electrode material layer supported on the negative electrode core material. The negative electrode material layer contains a carbon material. A surface layer portion of the negative electrode material layer includes a first layer containing lithium carbonate and a second layer containing a solid electrolyte. At least a portion of the second layer covers at least a portion of the surface of the carbon material with the first layer interposed therebetween.