Patent ID: 7144647

Claim:
A fuel cell stack for mounting in a vehicle in which a plurality of fuel cell units, each of which is formed by interposing a solid polymer electrolyte membrane between an anode electrode and a cathode electrode, are stacked in a horizontal direction with separators placed between each fuel cell unit, comprising: a mounting member for installation of the fuel cell into the vehicle provided at an end plate that is provided at both ends along the direction in which the fuel cell units are stacked, at least one intermediate supporting member additionally provided at an intermediate portion along the direction in which the fuel cell units are stacked for supporting the fuel cell stack in the vicinity of the intermediate portion, and at least one piping mounting member to which pipes for fuel gas, oxygen gas and coolant are attached, said piping mounting member being provided at at least one end of said fuel cell stack, wherein the intermediate supporting member comprises a plate that is inserted into an intermediate portion of the fuel cell stack along the direction in which the fuel cell units are stacked and a mounting member for mounting the plate of the intermediate supporting member to the vehicle, and wherein the plate of the intermediate supporting member electrically connects together the fuel cell units situated on either side of the plate of the intermediate supporting member.