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:
Aug. 27, 2013
Filed:
May. 16, 2012
Jon P. Owejan, Honeoye, NY (US);
Paul D. Nicotera, Honeoye Falls, NY (US);
Matthew M. Mench, Knoxville, TN (US);
Robert E. Evans, Shelton, CT (US);
Jon P. Owejan, Honeoye, NY (US);
Paul D. Nicotera, Honeoye Falls, NY (US);
Matthew M. Mench, Knoxville, TN (US);
Robert E. Evans, Shelton, CT (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A fuel cell comprises a cathode gas diffusion layer, a cathode catalyst layer, an anode gas diffusion layer, an anode catalyst layer and an electrolyte. The diffusion resistance of the anode gas diffusion layer when operated with anode fuel is higher than the diffusion resistance of the cathode gas diffusion layer. The anode gas diffusion layer may comprise filler particles having in-plane platelet geometries and be made of lower cost materials and manufacturing processes than currently available commercial carbon fiber substrates. The diffusion resistance difference between the anode gas diffusion layer and the cathode gas diffusion layer may allow for passive water balance control.