Patent ID: 7316860
Filing Date: 2008-01-08
Classification: H01M,Y02E,Y02P

Abstract:
1. A polymer electrolyte fuel cell comprising: a hydrogen ion-conductive polymer electrolyte membrane; an anode and a cathode with said electrolyte membrane interposed therebetween; an anode-side conductive separator having a gas flow channel for supply of a fuel gas to said anode; and a cathode-side conductive separator having a gas flow channel for supply of an oxidant gas to said cathode, wherein each of said anode and said cathode comprises at least a catalyst layer in contact with said electrolyte membrane and a gas diffusion layer in contact with said catalyst layer and said separator, and said catalyst layer of said anode and said cathode contains a compound represented by the formula (I): where R wherein said catalyst layer of said anode or said cathode further comprises at least one oxide containing at least one metal selected from the group consisting of silicon, titanium, aluminum, zirconium, magnesium and chromium, and said catalyst layer of said anode or said cathode contains said metal oxide in an amount of 1 to 10,000 ppm with respect to a total of carbon particles carrying catalyst particles thereon and a hydrogen ion conductive polymer electrolyte contained in said catalyst layer of said anode or said cathode.