MEMBRANE-ELECTRODE-ASSEMBLY MANUFACTURING METHOD, MEMBRANE ELECTRODE ASSEMBLY, MEMBRANE-ELECTRODE-ASSEMBLY-FORMING LAMINATES, PROTON EXCHANGE MEMBRANE FUEL CELL, AND WATER-ELECTROLYSIS DEVICE

摘要

A membrane-electrode-assembly manufacturing process that contains the following: either a step (A1) in which catalyst layers are disposed on one surface of each of a plurality of electrolyte membranes, yielding laminates (A), or a step (A2) in which catalyst layers are coated with an electrolyte-membrane-forming composition, yielding laminates (A) that each have a catalyst layer and an electrolyte membrane; and either a step (B1) in which the laminates (A) are layered together with the electrode-membrane sides thereof facing each other, yielding a membrane electrode assembly, or a step (B2) in which a laminate (A) and an electrolyte membrane (a) are layered together such that the electrolyte membrane (a) is in contact with the electrolyte membrane of the laminate (A) and a catalyst layer is then disposed on the electrolyte membrane (a) side opposite the side thereof in contact with the laminate (A), yielding a membrane electrode assembly.