Fuel cell stack
AssigneeHonda Motor Co., Ltd.
InventorsTadashi Nishiyama, Go Morimoto
Life of this patent
Estimating the term…
Abstract
A fuel cell stack includes a plurality of fuel cells stacked together, and a pair of end plates provided at opposite ends the fuel cells in the stacking direction. Further, the fuel cell stack includes coupling members bridging between the end plates, holding mechanisms provided in side surfaces of the end plates and the coupling members for applying tension in a tightening direction, and fixing mechanisms for fixing the side surfaces of the end plates and the coupling members together. The holding mechanism has a pin member inserted into the side surface of the end plate and the coupling member. Further, the fixing mechanism has a screw for fixing the coupling member to the side surface of the end plate.
Claims7
A fuel cell stack comprising:
- a plurality of fuel cells stacked together in a stacking direction, the fuel cells each including a membrane electrode assembly and a separator stacked together, the membrane electrode assembly including a pair of electrodes and an electrolyte membrane interposed between the electrodes;
- a pair of end plates provided at opposite ends of the fuel cells in the stacking direction,
- a coupling member bridging between the end plates;
- a holding mechanism provided in a side surface of the end plate and the coupling member, for applying tension in a tightening direction;
- and
- a fixing mechanism coupled to the side surface of the end plate and the coupling member for fixing the side surface of the end plate and the coupling member together, wherein the holding mechanism and the fixing mechanism are provided on the same side surface of the end plate, and the side surface of the end plate extends along the stacking direction.
Dependencies are inferred from the claim text.