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. 21, 2020
Filed:
May. 15, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Inventor:
Go Tejima, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/90 (2006.01); H01M 4/92 (2006.01); H01M 8/1032 (2016.01); H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
H01M 4/9083 (2013.01); H01M 4/8663 (2013.01); H01M 4/921 (2013.01); H01M 8/1032 (2013.01); H01M 2250/20 (2013.01); Y02E 60/521 (2013.01); Y02T 90/32 (2013.01);
Abstract
A fuel cell includes a catalyst layer containing a polymer electrolyte and catalyst-carrying carbon. A value of an initial weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer is set to a value that is smaller by 0.1 to 0.2 than a value of a weight ratio of the polymer electrolyte to the catalyst-carrying carbon in the catalyst layer which maximizes a maximum output of the fuel cell in a state where the polymer electrolyte is not swollen.