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:
Dec. 09, 2014
Filed:
Mar. 22, 2007
Applicants:
Hideo Naohara, Sunto-gun, JP;
Yuichi Orikasa, Susono, JP;
Manabu Kato, Susono, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/88 (2006.01); H01M 4/92 (2006.01); H01M 8/10 (2006.01); H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
H01M 4/886 (2013.01); H01M 4/8828 (2013.01); H01M 4/92 (2013.01); Y02E 60/50 (2013.01); H01M 4/881 (2013.01); H01M 4/8673 (2013.01); H01M 4/928 (2013.01); H01M 4/8668 (2013.01);
Abstract
A fuel cell membrane-electrode assembly having a fuel electrode and an oxidant electrode has a non-supported-catalyst containing catalyst layer that contains a metal catalyst nanoparticle of 0.3 nm to 100 nm in primary particle diameter that is not supported on a support, and an electrochemically active surface area of the metal catalyst nanoparticle is 10 m/g to 150 m/g, and a layer thickness of the non-supported-catalyst containing catalyst layer is less than or equal to 10 μm.