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. 31, 2019
Filed:
Oct. 19, 2015
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Thomas W. Tighe, Pulaski, NY (US);
Steven G. Goebel, Victor, NY (US);
Gary M. Robb, Honeoye Falls, NY (US);
Abdullah B. Alp, Dearborn, MI (US);
Balasubramanian Lakshmanan, Rochester Hills, MI (US);
Joseph N. Lovria, Davisburg, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04223 (2016.01); H01M 8/04302 (2016.01); H01M 8/04303 (2016.01); H01M 8/04955 (2016.01); H01M 8/04089 (2016.01); H01M 8/0438 (2016.01); H01M 8/0444 (2016.01); H01M 8/04746 (2016.01); H01M 8/04791 (2016.01); H01M 8/04701 (2016.01); H01M 8/04119 (2016.01); H01M 8/04537 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04231 (2013.01); H01M 8/04089 (2013.01); H01M 8/04223 (2013.01); H01M 8/04302 (2016.02); H01M 8/04303 (2016.02); H01M 8/04395 (2013.01); H01M 8/04455 (2013.01); H01M 8/04701 (2013.01); H01M 8/04746 (2013.01); H01M 8/04753 (2013.01); H01M 8/04798 (2013.01); H01M 8/04955 (2013.01); H01M 8/04126 (2013.01); H01M 8/04559 (2013.01); H01M 2250/20 (2013.01); Y02T 90/32 (2013.01);
Abstract
A method for creating an oxygen depleted gas in a fuel cell system, including operating a fuel cell stack at a desired cathode stoichiometry at fuel cell system shutdown to displace a cathode exhaust gas with an oxygen depleted gas. The method further includes closing a cathode flow valve and turning off a compressor to stop the flow of cathode air.