| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell capable of keeping an electrolyte material in a desirable wet environment without cutting an electron conductive passage inside a catalyst layer, and achieving the efficient cell performance. SOLUTION: In this fuel cell including a pair of catalyst layers holding a proton conductive electrolyte film therebetween, at least one of the catalyst layers is composed of a mixture including a catalyst component, the electrolyte material and a carbon material, which has a water vapor adsorption of 100 ml/g or less at 25 deg.C under relative humidity of 90%. |
