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:
Aug. 01, 2023
Filed:
Mar. 08, 2022
Applicants:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Cataler Corporation, Kakegawa, JP;
Inventors:
Toshihiro Ikai, Okazaki, JP;
Tomohiro Ishida, Hamamatsu, JP;
Godai Kitayama, Hamamatsu, JP;
Yousuke Horiuchi, Shimada, JP;
Assignees:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/92 (2006.01); H01M 8/1004 (2016.01); H01M 8/10 (2016.01); H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
H01M 4/925 (2013.01); H01M 8/1004 (2013.01); H01M 2004/8689 (2013.01); H01M 2008/1095 (2013.01);
Abstract
A fuel cell electrode catalyst includes catalyst metal particles and electrically conductive support particles supporting the catalyst metal particles. In the fuel cell electrode catalyst, a proportion of a surface area occupied by the catalyst metal particles with particle sizes of 4.5 nm or less to a surface area of the catalyst metal particles calculated from a transmission electron microscope image is 5% or less.