Patent ID: 8097112
Filing Date: 2012-01-17
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A method for manufacturing a membrane-electrode assembly, comprising: a reinforcing member disposing step of disposing a reinforcing member, whose frame portion is formed to surround an opening of the reinforcing member, on a polymer electrolyte membrane such that the frame portion covers a peripheral portion of at least one surface of the polymer electrolyte membrane; a catalyst layer applying step of applying a coating of a catalyst layer on an entire surface of the polymer electrolyte membrane, which surface is exposed from the opening of the reinforcing member, such that the catalyst layer spreads outside the opening when viewed from a thickness direction of the catalyst layer; and a gas diffusion layer disposing step of disposing a gas diffusion layer such that the gas diffusion layer covers the catalyst layer, wherein the reinforcing member disposing step, the catalyst layer applying step, and the gas diffusion layer disposing step are performed in the stated order.