Method for producing film electrode jointed product and method for producing solid polymer type fuel cell

Abstract

A method for producing a membrane electrode assemblyfor solid polymer electrolyte fuel cell, the membrane electrode assemblyincluding a solid polymer electrolyte membranecomprising an ion exchange membrane, a first electrodehaving a first catalyst layer, and a second electrodehaving a second catalyst layer, the first electrodeand the second electrodebeing disposed so as to be opposed to each other via the ion exchange membrane, the method including: applying a coating solution containing a catalyst onto a base filmto form a first catalyst layer; applying a coating solution containing an ion exchange resin dissolved or dispersed in a liquid onto the first catalyst layerto form an ion exchange membrane; then applying a coating solution containing a catalyst onto the ion exchange membrane to form a second catalyst layer; and finally, peeling off the base filmfrom a resulting laminate. According to this method, it is possible to produce membrane electrode assemblyfor high-performance solid polymer electrolyte fuel cell having catalyst layers each having a uniform thickness efficiently and continuously.