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:
Jun. 26, 2012
Filed:
Jul. 26, 2007
Annette M. Brenner, Honeoye Falls, NY (US);
Hubert A. Gasteiger, Rochester, NY (US);
Wenbin Gu, Pittsford, NY (US);
James Leistra, Penfield, NY (US);
Brian A. Litteer, Henrietta, NY (US);
Han Liu, Waltham, MA (US);
Susan G. Yan, Fairport, NY (US);
Jingxin Zhang, Rochester, NY (US);
Annette M. Brenner, Honeoye Falls, NY (US);
Hubert A. Gasteiger, Rochester, NY (US);
Wenbin Gu, Pittsford, NY (US);
James Leistra, Penfield, NY (US);
Brian A. Litteer, Henrietta, NY (US);
Han Liu, Waltham, MA (US);
Susan G. Yan, Fairport, NY (US);
Jingxin Zhang, Rochester, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An MEA for a fuel cell that employs multiple catalyst layers to reduce the hydrogen and/or oxygen partial pressure at the membrane so as to reduce the fluoride release rate from the membrane and reduce membrane degradation. An anode side multi-layer catalyst configuration is positioned at the anode side of the MEA membrane. The anode side multi-layer catalyst configuration includes an anode side under layer positioned against the membrane and including a catalyst, an anode side middle layer positioned against the anode side under layer and not including a catalyst and an anode side catalyst layer positioned against the anode side middle layer and opposite to the anode side under layer and including a catalyst, where the amount of catalyst in the anode side catalyst layer is greater than the amount of catalyst in the anode side under layer.