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:
Feb. 07, 2017
Filed:
Mar. 07, 2013
Applicants:
Daimler Ag, Stuttgart, DE;
Ford Motor Company, Dearborn, MI (US);
Inventors:
Herwig Haas, Vancouver, CA;
Joy Roberts, Coquitlam, CA;
Francine Berretta, Vancouver, CA;
Amy Shun-Wen Yang, Port Coquitlam, CA;
Assignees:
Daimler AG, Stuttgart, DE;
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/92 (2006.01); H01M 4/86 (2006.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 4/921 (2013.01); H01M 4/8652 (2013.01); H01M 4/8673 (2013.01); H01M 4/92 (2013.01); H01M 4/926 (2013.01); H01M 2008/1095 (2013.01);
Abstract
The degradation associated with repeated startup and shutdown of solid polymer electrolyte fuel cells comprising PtCo alloy cathode catalysts can be particularly poor. However, a marked and unexpected improvement in durability is observed as a result of incorporating a selectively conducting component in electrical series with the anode components in the fuel cell.