Patent ID: 6855448

Claim:
A fuel cell stack comprising a stack including a predetermined number of cell units electrically connected to one another in series, said cell units each including a unified body and a pair of separators for supporting said unified body interposed between said pair of separators, said unified body having an anode supplied with a fuel gas, a cathode supplied with an oxygen-containing gas, and an electrolyte arranged between said anode and said cathode, and said pair of separators each having a fuel gas supply passage for supplying said fuel gas or an oxygen-containing gas supply passage for supplying said oxygen-containing gas, said fuel cell stack further comprising end plates arranged outside of said stack with terminal electrodes interposed between said end plates and said stack, wherein said stack and said terminal electrodes are accommodated in a case having at least one detachable side surface, and said end plates are connected to open ends of said case by a hinge mechanism.