Patent ID: 8192894

Claim:
A fuel cell formed by stacking an electrolyte electrode assembly and a pair of separators alternately in a stacking direction, said pair of separators including a first separator and a second separator, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, wherein: each of said first and second separators includes a first plate and a second plate which are stacked together in the stacking direction, wherein the first plate and the second plate of each of the first and second separators extend along an entire surface of the electrolyte electrode assembly perpendicular to the stacking direction; said electrolyte electrode assembly is sandwiched between the first separator and the second separator; a supply passage for one of a fuel gas and an oxygen-containing gas extends through said fuel cell in the stacking direction; wherein the first plate of the first separator includes an extended portion that extends over and wraps around an end portion of the second plate of the second separator in the stacking direction to completely shield the end portion of the second plate from the supply passage in the stacking direction, wherein the extended portion of the first plate of the first separator forms a wall of the supply passage; wherein the second plate of the second separator does not form the wall of the supply passage; wherein the extended portion of the first plate and the end portion of the second plate form a joint portion; and wherein said joint portion is provided around an entire perimeter of said supply passage.