Skip to Content
Find More Like This
Return to Search

Low cost fuel cell diffusion layer configured for optimized anode water management

United States Patent

August 27, 2013
View the Complete Patent at the US Patent & Trademark Office
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.
Owejan; Jon P. (Honeoye, NY), Nicotera; Paul D. (Honeoye Falls, NY), Mench; Matthew M. (Knoxville, TN), Evans; Robert E. (Shelton, CT)
GM Global Technology Operations LLC (Detroit, MI)
13/ 473,104
May 16, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was sponsored by the government under contract number DE-EE0000470 awarded by the Department of Energy. The government has certain rights in the invention.