Patent ID: 7074513

Claim:
A unit cell for a solid electrolyte type fuel cell, comprising: a fuel electrode; an air electrode making a pair with the fuel electrode; a solid electrolyte interposed between the fuel electrode and the air electrode; a porous metallic base body made of porous metallic material and disposed on at least one of a surface of the fuel electrode on the far side from the solid electrolyte and a surface of the air electrode on the far side from the solid electrolyte such that the fuel electrode, the electrolyte, the air electrode and the porous metallic base body are laminated in a laminating direction; a plurality of concave portions formed in the porous metallic base body such that within the porous metallic material forming the porous metallic base body, respective concave portions extend, in the laminating direction, from a surface of the porous metallic base body; a gas introduction chamber introducing gas to an associated one of the fuel electrode and the air electrode via the plurality of concave portions; and a gas discharge chamber permitting the gas introduced in the gas introduction chamber to be discharged, wherein the gas introduction chamber and the gas discharge chamber are formed in the porous metallic base body, and the porous metallic base bodies are located on both the surface of the fuel electrode on the far side from the solid electrolyte and the surface of the air electrode on the far side from the solid electrolyte, with the gas introduction chamber of the porous metallic base body located on the surface of the fuel electrode on the far side from the solid electrolyte being supplied with fuel gas while the gas introduction chamber of the porous metallic base body located on the surface of the air electrode on the far side from the solid electrolyte is supplied with oxidizing gas.