ELECTROLYTE MEMBRANE/ELECTRODE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an electrolyte membrane/electrode structure capable of enhancing the output density favorably.SOLUTION: An electrolyte membrane/electrode structure 12 is constituted by sandwiching an electrolyte membrane 46 between an anode electrode 48 and a cathode electrode 50. An anode gas diffusion layer 54 after a fastening load is given has a thickness of 0.12-0.17 mm, and a surface resistivity of 0.70-1.00 &OHgr;/sq. A cathode gas diffusion layer 58 has a thickness of 0.15-0.22 mm, and a surface resistivity of 0.60-0.70 &OHgr;/sq. Surface resistivity of the anode gas diffusion layer 54 is higher than that of the cathode gas diffusion layer 58.