Patent ID: 8323845

Claim:
A solid electrolyte fuel cell stack, comprising: a solid electrolyte fuel cell plate structure; and a first porous base body disposed adjacent to the solid electrolyte fuel cell plate structure, wherein the solid electrolyte fuel cell plate structure includes: a cell element layer having an air electrode layer, a fuel electrode layer and a solid electrolyte layer which is sandwiched between the air electrode layer and the fuel electrode layer; a second porous base body supporting the cell element layer, the cell element layer being formed on the second porous base body such that the air electrode layer or the fuel electrode layer is formed on the second porous base body to be joined thereto; and a unitary gas-impermeable member having an electrical conductivity and being a foil folded or bent to be joined to the solid electrolyte layer to hermetically seal corresponding one of the air electrode layer and the fuel electrode layer which is formed on the second porous base body, thereby allowing gas flowing through the second porous base body to be separated from gas flowing outside the second porous base body, and wherein a plurality of the solid electrolyte fuel cell plate structures are stacked via the first porous base body, adjacent to the fuel cell plate structures, in a direction in which the cell element layers are laminated.