Patent ID: 6899971

Claim:
A gas diffusion layer arrangement for a fuel cell used for at least one of gas diffusion layers of a fuel cell where a fuel electrode side catalyst layer and an air electrode side catalyst layer are disposed at both faces of an electrolyte film, and further gas diffusion layers are disposed respectively on the outer surfaces of the fuel electrode side catalyst layer and air electrode side catalyst layer, comprising a first gas diffusion layer formed of a mesh sheet having a heat resistance and an acid resistance, and a mixture of electrically conductive powder and water repellent filler contained entirely within voids of said mesh sheet, wherein a second gas diffusion layer is stacked on a face of said first gas diffusion layer in contact with said catalyst layer, the second gas diffusion layer being formed of the mixture of electrically conductive powder and water repellent filler, and presenting a void rate smaller than that of said first gas diffusion layer.