Patent ID: 8557467

Claim:
A fuel cell, comprising a plurality of electrolyte electrode assemblies stacked between separators, the electrolyte electrode assemblies each including an anode, a cathode, and an electrolyte interposed between the anode and the cathode, the separators each comprising: sandwiching sections sandwiching the electrolyte electrode assemblies, the sandwiching sections each having a fuel gas channel for supplying a fuel gas along an electrode surface of the anode and an oxygen-containing gas channel for supplying an oxygen-containing gas along an electrode surface of the cathode separately; bridges connected to the sandwiching sections, the bridges each having a reactant gas supply channel for supplying the fuel gas to the fuel gas channel or supplying the oxygen-containing gas to the oxygen-containing gas channel; and a reactant gas supply section connected to the bridges, a reactant gas supply passage extending through the reactant gas supply section in a stacking direction for supplying the fuel gas or the oxygen-containing gas to the reactant gas supply channel, wherein the reactant gas supply section is provided at the center of the separator, and the electrolyte electrode assemblies are arranged in a circle around the reactant gas supply section, and wherein the sandwiching section includes: a fuel gas inlet for supplying the fuel gas to the fuel gas channel; a fuel gas discharge channel for discharging the fuel gas after consumption in the fuel gas channel; and a continuous arc shaped wall portion disposed between the fuel gas inlet and the fuel gas discharge channel and configured for preventing the fuel gas supplied from the fuel gas inlet from flowing straight from the fuel gas inlet to the fuel gas discharge channel along the fuel gas channel.