FUEL CELL AND GAS DIFFUSION ELECTRODE FOR FUEL CELL

摘要

A fuel cell comprising a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode comprises a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material comprises a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25°C and a relative humidity of 90% of 50 ml/g or more.