Patent ID: 7378166

Claim:
A fuel cell assembly having a plurality of fuel cell units stacked in a direction of stacking, each of said fuel cell units including a pair of separators and an electrolyte membrane held between said pair of separators, said fuel cell assembly comprising: a contact region provided between ones of said separators of said fuel cell units adjacent to each other; a rod-shaped terminal contacting said separators at said contact region to measure cell voltage of said fuel cell units; and a support unit which holds said rod-shaped terminal and which is rotatable about a shaft so as to adjust contact pressure between said rod-shaped terminal and said separators, wherein said contact region is defined by a groove formed in outer peripheries of said ones of said separators of said fuel cell units adjacent to each other, wherein a portion of said rod-shaped terminal is disposed in said groove and contacts said separators, and more than half an area of a cross-section of said portion of said rod-shaped terminal perpendicular to a longitudinal axis of said rod-shaped terminal is accommodated in said groove, and wherein said groove is formed by a pair of recesses respectively provided in said ones of said separators of said fuel cell units adjacent to each other.