Patent ID: 8247129
Filing Date: 2012-08-21
Classification: H01M,Y02E,Y02P

Abstract:
1. A solid oxide fuel cell comprising a tube-shaped solid electrolyte, an anode on one side of the solid electrolyte, and a cathode on another side of the solid electrolyte, wherein the anode is provided with a reforming catalyst in a central portion or a combustion catalyst in a lower portion and in an upper portion, the reforming catalyst is made of a material that is different from a material from which the combustion catalyst is made of , and wherein the material from which the combustion catalyst is made of in the upper and the lower portion of the anode does not show any combustion catalytic activity in the central portion of the anode and the material from which the reform catalyst is made of does not show any reforming catalytic activity in the lower and the upper portions of the anode, and a concentration of the reforming catalyst is higher in the central portion of the anode than in the upper and the lower portion of the anode in the axial direction of the solid electrolyte, or a concentration of the combustion catalyst is higher in the upper and the lower portion than in the central portion of the anode in the axial direction of the solid electrolyte.