Method for manufacturing a fuel cell electrode catalyst

Disclosed is a polymer electrolyte and a catalyst material and a solid polymer fuel cell electrode catalyst layer comprising carbon particles, the production of the electrode catalyst layer exhibiting high power generation characteristics of an oxide-based non-platinum catalyst on the catalyst material how to provide a membrane electrode assembly and a polymer electrolyte fuel cell as well as the composite particles using the same. An at least a catalyst substance, and the first carbon particles, and a first polyelectrolyte to prepare a first catalyst ink dispersed in a first solvent, the first catalyst ink drying is allowed to form embedded composite particles in the first polyelectrolyte, the composite particles, the second carbon particles, a second dispersing the second polymer electrolyte in a second solvent to prepare a catalyst ink, on the substrate, it can solve the problem by the method of manufacturing a fuel cell electrode catalyst layer and forming an electrode catalyst layer by applying the second catalyst ink. .FIELD 1