Patent ID: 7670708

Claim:
A solid polyelectrolyte fuel cell comprising: a solid polyelectrolyte film electrode conjugate in which electrode films are provided on one side and the other side of a solid polyelectrolyte film, respectively; a first gas diffusion layer provided so as to cover the electrode film on one side of the solid polyelectrolyte film electrode conjugate; a second gas diffusion layer provided so as to cover the electrode film on the other side of the solid polyelectrolyte film electrode conjugate; and separators provided on the one side and the other side of the solid polyelectrolyte film electrode conjugate, respectively, with the gas diffusion layers interposed therebetween, wherein a first deterioration inhibitor is provided between the solid polyelectrolyte film of the solid polyelectrolyte film electrode conjugate and at least one of the first and second gas diffusion layers so as to prevent direct contact between the solid polyelectrolyte film and at least one of the first and second gas diffusion layers, and which inhibits generation of radicals between the solid polyelectrolyte film and at least one of the first and second gas diffusion layers; and wherein a second deterioration inhibitor is provided in peripheral ends of the solid polyelectrolyte film of the solid polyelectrolyte film electrode conjugate and at least one of the first and second gas diffusion layers so as to prevent direct contact between the solid polyelectrolyte film and at least one of the first and second gas diffusion layers, and which inhibits generation of radicals between the solid polyelectrolyte film and at least one of the first and second gas diffusion layers; wherein at least one of the deterioration inhibitors decomposes hydrogen peroxide into water and oxygen.