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:
Mar. 10, 2015
Filed:
Aug. 09, 2011
Applicants:
Daniel C. Di Fiore, Scottsburg, NY (US);
Thomas W. Tighe, Bloomfield, NY (US);
Inventors:
Daniel C. Di Fiore, Scottsburg, NY (US);
Thomas W. Tighe, Bloomfield, NY (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/06 (2006.01); H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
H01M 8/04753 (2013.01); H01M 8/0662 (2013.01); H01M 8/04305 (2013.01); H01M 8/04447 (2013.01); H01M 8/04455 (2013.01); H01M 8/0447 (2013.01); H01M 8/04783 (2013.01); Y02E 60/50 (2013.01); H01M 2220/20 (2013.01);
Abstract
A method for determining a rate of accumulation of nitrogen in an anode side of a fuel cell stack. The method includes determining a concentration of nitrogen in an anode loop and determining a number of moles of nitrogen in the anode loop. The method also includes determining a rate of accumulation of nitrogen in the anode loop and determining a permeability factor of nitrogen through fuel cell membranes in the fuel cell stack using the determined rate of accumulation of nitrogen in the anode loop.