METHOD FOR PRODUCING ELECTRODE CATALYST LAYER FOR FUEL CELL, AND ELECTRODE CATALYST LAYER FOR FUEL CELL USING SAME

摘要

Disclosed is a method for producing an electrode catalyst layer for a solid polymer fuel cell, said electrode catalyst layer comprising a polymer electrolyte, a catalyst substance and carbon particles and exhibiting high power generation characteristics by using an oxide-based non-platinum catalyst as the catalyst substance. Also disclosed are an electrode catalyst layer, a membrane electrode assembly, and a solid polymer fuel cell. Specifically disclosed is a method for producing an electrode catalyst layer for a solid polymer fuel cell, said electrode catalyst layer being used in a fuel cell wherein a polymer electrolyte membrane sandwiched by a pair of electrode catalyst layers is held between a pair of gas diffusion layers. The method for producing an electrode catalyst layer for a solid polymer fuel cell is characterized by comprising a step of embedding a polymer electrolyte in a catalyst substance or carbon particles.