Patent ID: 8329359

Claim:
A polymer electrolyte fuel cell, comprising: a solid polymer electrolyte membrane; catalytic layers disposed on both sides of the solid polymer electrolyte membrane; gas diffusion layers disposed outside the catalytic layers; and separators disposed outside the gas diffusion layers, wherein a cathode-sided catalytic layer of the catalytic layers comprises: a carbon carrier comprising carbon having a mean lattice plane spacing d002 of [002] planes calculated from an X-ray diffraction within a range of 0.343 nm to 0.358 nm, a crystallite size Lc within a range of 3 nm to 10 nm; catalyst particles containing platinum supported on the carbon carrier; and an electrolyte, wherein the carbon carrier comprises a carbon black having a bulk density within a range of 0.09 g/cm3 to 0.13 g/cm3; wherein the carbon black has an electrical resistivity within a range of 0.27 Ωcm to 0.33 Ωcm.