Patent ID: 7504831

Claim:
A cell-voltage measuring structure for a fuel cell stack in which a plurality of unit cells, having conductive separators, are stacked in a stack direction, the conductive separators including anode-side separators and cathode-side separators to form pairs of unit separators with the anode-side separators and the cathode-side separators adjacent to each other, respectively, the structure comprising: a voltage-measuring unit having a conductive voltage-measuring terminal; a contact section, with which the conductive voltage-measuring terminal is to be held in face to face contact, formed on a side face, which is defined by the stack direction and a direction perpendicular to the stack direction, of a first pair of unit separators; and a non-contact section, with which the conductive voltage-measuring terminal is to not be held in contact, concavely formed on a side face, which is defined by the stack direction and a direction perpendicular to the stack direction, of a second pair of unit separators adjacent to the first pair of unit separators, a length of the conductive voltage-measuring terminal in the stack direction being greater than a thickness of the first pair of unit separators in the stack direction, and the conductive voltage-measuring terminal extending in the stack direction to contact the contact section without contacting the non-contact section which is adjacent to the contact section.