Fuel cell stack and fuel cell comprising such a stack

Abstract

The invention relates to an assembly (1) comprising a stack of a plurality of fuel cell cells (30), the plurality comprising a first cell (30) at a first end of the stack and a last cell (30) at a second end of the stack, each cell (30) comprising an anode plate (10) and a cathode plate (20) sandwiching a Membrane Electrode Assembly (16), each plate (10, 20) comprising a reactive face and a cooling face opposite each other, the cooling face of the cathode plate (20) of at least one of the cells (30) being intended to face the cooling face of the anode plate (10) of another of the cells (30), defining between them reliefs and hollows to form an intercellular cooling circuit (15) for the circulation of a cooling fluid, one of the plates (10,20) of the last cell (30) forming with one of the plates (10, 20) of another of the cells (30), a last cooling circuit (15), the other of the plates (10, 20) of the last cell (30) forming a last end plate, the assembly comprising a closure plate (21) comprising an electric current collection face and a closure face fixed to the cooling face of the last end plate. Abstract figure: Fig. 1,