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Conductive polymer layers to limit transfer of fuel reactants to catalysts of fuel cells to reduce reactant crossover

United States Patent

To discuss licensing opportunities, fill out our Contact Form 
9,515,340
December 6, 2016
View the Complete Patent at the US Patent & Trademark Office
Gas Diffusion Electrodes for Fuel Cells Next-Generation Automotive
An apparatus of an aspect includes a fuel cell catalyst layer. The fuel cell catalyst layer is operable to catalyze a reaction involving a fuel reactant. A fuel cell gas diffusion layer is coupled with the fuel cell catalyst layer. The fuel cell gas diffusion layer includes a porous electrically conductive material. The porous electrically conductive material is operable to allow the fuel reactant to transfer through the fuel cell gas diffusion layer to reach the fuel cell catalyst layer. The porous electrically conductive material is also operable to conduct electrons associated with the reaction through the fuel cell gas diffusion layer. An electrically conductive polymer material is coupled with the fuel cell gas diffusion layer. The electrically conductive polymer material is operable to limit transfer of the fuel reactant to the fuel cell catalyst layer.
13/ 081,381
April 6, 2011
1/1
H01M 8/04 (20160101)H01M 8/08 (20160101)H01M 8/10 (20160101)
;429/443,506,514
STATEMENT OF GOVERNMENT RIGHTS This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.