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:
Jul. 12, 2011
Filed:
May. 11, 2005
Bhaskar Sompalli, Rochester, NY (US);
Brian A. Litteer, Henrietta, NY (US);
John P. Healy, Pittsford, NY (US);
Susan G. Yan, Fairport, NY (US);
Hubert A. Gasteiger, Rochester, NY (US);
Wenbin Gu, Pittsford, NY (US);
Gerald W. Fly, Geneseo, NY (US);
Bhaskar Sompalli, Rochester, NY (US);
Brian A. Litteer, Henrietta, NY (US);
John P. Healy, Pittsford, NY (US);
Susan G. Yan, Fairport, NY (US);
Hubert A. Gasteiger, Rochester, NY (US);
Wenbin Gu, Pittsford, NY (US);
Gerald W. Fly, Geneseo, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A fuel cell including an anode-side catalyst coated membrane and a cathode-side catalyst coated membrane. At least a portion of a reduced-permeability layer is disposed between the ionically conductive membrane and the anode-side and cathode-side gas diffusion media, wherein the reduced-permeability layer is formed of a material that has a permeability that is less than a permeability of the ionically conductive member. The reduced-permeability layer may also be formed of a material that is softer than the ionically conductive membrane.