Patent ID: 8652701

Claim:
A fuel cell in which an electrolyte electrode assembly is sandwiched between sandwiching sections of adjacent separators in a stacking direction, the electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between the anode and the cathode, wherein each of the sandwiching sections includes a fuel gas channel that supplies fuel gas to an electrode face of the anode and a separately provided oxygen-containing gas channel that supplies oxygen-containing gas to an electrode face of the cathode, the fuel gas and the oxygen-containing gas being discharged after use from a circumferential edge of the electrolyte electrode assembly, wherein the sandwiching section is formed in a shape of a circular disk; each of the separators further comprising: a bridge which is connected to the sandwiching section and includes a reactant gas supply channel that supplies the fuel gas to the fuel gas channel or the oxygen-containing gas to the oxygen-containing gas channel; a reactant gas supply section which is connected to the bridge and includes a reactant gas supply passage that supplies the fuel gas or the oxygen-containing gas to the reactant gas supply channel, the reactant gas supply passage being formed in a stacking direction of the separator; and a connecting section that connects the sandwiching section to the bridge such that a tangential direction of a circumferential edge of the sandwiching section at the connecting section is substantially same as a tangential direction of a circumferential edge of the bridge at the connecting section, wherein the bridge is a circular arc shaped member having a radius that is larger than a radius of the sandwiching section, and the connecting section between the sandwiching section and the bridge is formed as a smoothly continuous plane, and does not protrude outside a diameter direction of the sandwiching section.