Patent ID: 8202570
Filing Date: 2012-06-19
Classification: H01M,Y02E,Y02P

Abstract:
1. A process for producing a membrane/electrode assembly for a polymer electrolyte fuel cell, the assembly comprising an anode and a cathode each having a catalyst layer comprising a catalyst and an ion exchange resin, and an electrolyte membrane comprising a proton-conducing polymer and disposed between the catalyst layer of the anode and the catalyst layer of the cathode, the process comprising forming at least one of the anode and the cathode by: applying a first coating fluid comprising the catalyst and the ion exchange resin, onto a substrate to form the catalyst layer; applying a second coating fluid comprising carbon fibers and an ion exchange resin, onto the catalyst layer to form a gas diffusion layer to serve as the outermost layer of the membrane/electrode assembly for the polymer electrolyte fuel cell; and peeling the substrate off from the catalyst layer.