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:
May. 15, 2012
Filed:
Dec. 14, 2007
Applicant:
Eric L. Thompson, Livonia, NY (US);
Inventor:
Eric L. Thompson, Livonia, NY (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of operating a fuel cell system is disclosed, the method including the steps of providing a fuel cell stack including a plurality of fuel cell assemblies, each fuel cell assembly having a proton exchange membrane disposed between a plurality of fuel cell plates, wherein water is purged from the fuel cell system during a shutdown operation, and a current is produced in the fuel cell system following the shutdown purge to produce product water to hydrate the proton exchange membrane.