Patent ID: 6797426
Filing Date: 2004-09-28
Classification: H01M,Y02E

Abstract:
A fuel cell, comprising:a fuel electrode a fuel-diffusion layer for diffusing fuel and a fuel-reactive layer for reaction of the fuel, said fuel-reactive layer having an outer surface contacting the fuel diffusion layer, said fuel-diffusion layer containing a water-repellent material, an oxygen electrode including an oxygen-diffusion layer for diffusing oxygen and an oxygen-reactive layer for reaction of the oxygen, said oxygen-reactive layer having an outer surface contacting the oxygen-diffusion layer, and wherein said oxygen-diffusion layer contains a water-repellent material and has less water-repellency than said fuel-diffusion layer; and an electrolyte layer, said fuel-reactive layer arranged between said electrolyte layer and said fuel-diffusion layer and said oxygen-reactive layer arranged between said electrolyte layer and said oxygen-diffusion layer.