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:
Jul. 15, 2025
Filed:
Oct. 09, 2019
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventor:
Kousuke Shiraki, Osaka, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/96 (2006.01); H01M 8/18 (2006.01);
U.S. Cl.
CPC ...
H01M 4/96 (2013.01); H01M 8/188 (2013.01);
Abstract
An electrode includes a carbon fiber, wherein the carbon fiber has a first region including a surface of the carbon fiber, when a cross section of the carbon fiber is analyzed by electron energy loss spectroscopy, the first region has peaks both around 285 eV and around 530 eV, and the first region is provided up to 10% of a diameter of the carbon fiber from the surface toward a center.