Patent ID: 7914937

Claim:
A fuel cell formed by stacking an electrolyte electrode assembly and separators alternately, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, each said separator comprising: an electrode stack unit by which the electrolyte electrode assembly is sandwiched, said electrode stack unit comprising a fuel gas flow field for supplying a fuel gas along a surface of said anode, and an oxygen-containing gas flow field for supplying an oxygen-containing gas along a surface of said cathode; a fuel gas side bridge continuous with said electrode stack unit, a fuel gas distribution passage allowing the fuel gas to be supplied to said fuel gas flow field; and a fuel gas supply unit continuous with said fuel gas side bridge, said fuel gas supply unit comprising a fuel gas supply passage extending in the stacking direction for allowing the fuel gas to be supplied to said fuel gas distribution passage, wherein said fuel gas side bridge connects said fuel gas supply unit and said electrode stack unit, wherein at least a portion of said electrode stack unit, said fuel gas side bridge and said fuel gas supply unit are integrally formed as a single-piece member, a fuel gas channel is formed extending along an entire inner surface of the electrode stack unit, and wherein said fuel gas side bridge is narrower than said electrode stack unit and said fuel gas supply unit so as to separate rigidity of said electrode stack unit and said fuel gas supply unit.