Patent ID: 8354137

Claim:
A method for manufacturing an electrode catalyst layer of a fuel cell, said electrode catalyst layer comprising a catalyst material, carbon particles, a first polymer electrolyte and a second polymer electrolyte, a specific surface area of said catalyst material being smaller than a specific surface area of said carbon particles, the method comprising: (1): preparing a first catalyst ink, in which said first polymer electrolyte and said catalyst material are dispersed in a solvent in order to embed said catalyst material in said first polymer electrolyte; (2): drying said first catalyst ink so that said catalyst material embedded in said first polymer electrolyte is obtained; (3): preparing a second catalyst ink, in which said catalyst material embedded in said first polymer electrolyte, said carbon particles and said second polymer electrolyte are dispersed in a solvent; and (4): coating said second catalyst ink on a substrate which is a gas diffusion layer, a transfer sheet or a polymer electrolyte membrane so as to fabricate said electrode catalyst layer, wherein said catalyst material is not preliminarily loaded on or supported by said carbon particles in said (1), and wherein said carbon particles are not preliminarily embedded in said first polymer electrolyte in said (3).