MEMBRANE ELECTRODE ASSEMBLY AND MEMBRANE ELECTRODE ASSEMBLY MANUFACTURING METHOD

摘要

Provided are a membrane electrode assembly and a membrane electrode assembly fabrication method whereby it is possible to suppress molding defects when molding a resin frame which is integrated with the outer circumference edge of the membrane electrode assembly. Provided is a membrane electrode assembly (30), comprising: a polyelectrolyte membrane (32); a catalytic layer which is positioned on a surface of the polyelectrolyte membrane (32); and a gas diffusion layer (45) which is positioned on the face of the catalytic layer which is on the opposite side from the face whereupon the polyelectrolyte membrane (32) is positioned. The gas diffusion layer (45) further comprises corner parts (31A-31D) which are chamfered such that there are no sharp corners.