METHOD OF MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY, METHOD OF MANUFACTURING FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL

摘要

Provided is a method of manufacturing a membrane electrode assembly including catalyst layers in both sides of a polymer electrolyte membrane, substance diffusion of the catalyst layer being improved, in which forming at least one of the catalyst layers includes at least: forming a first layer including one of a catalyst and a catalyst precursor on a surface of a sheet by vapor-phase deposition; forming a through hole in the first layer; forming a second layer including one of a catalyst and a catalyst precursor on a surface of the first layer having the through hole by vapor-phase deposition; joining a polymer electrolyte membrane to a surface of the second layer; and peeling off the sheet from the first layer.