Patent ID: 8703360
Filing Date: 2014-04-22
Classification: B29C,B29L,H01M,Y02E,Y02P

Abstract:
1. A method for producing an electrode-membrane-frame assembly, comprising: providing an electrode-membrane-frame assembly principal part having a polymer electrolyte membrane with opposing surfaces, a first catalyst layer arranged on one of the surfaces of the electrolyte membrane, a first gas diffusion layer arranged on a surface of the first catalyst layer and inside a circumferential region of the principal part, a second catalyst layer arranged on the other surface of the electrolyte membrane, and a second gas diffusion layer arranged on a surface of the second catalyst layer and inside the circumferential region of the principal part so that the first and second gas diffusion layers have opposing regions that oppose each other with the electrolyte membrane interposed therebetween and so that a position of an outer circumference of the second gas diffusion layer is different than that of an outer circumference of the first gas diffusion layer;