Abstract: The fuel cell structure is constituted by a plurality of cells disposed in electrical contact with one another, each cell comprising two porous electrodes, an electrolyte filling the gap between the said electrodes, and two impermeable bipolar current collectors. The bottom and top portions of the collectors (23) are provided on both faces thereof with grooves or hollows enabling the anode face of the collectors to be supplied with fuel and the cathode face to be supplied with oxidant. Elongate ribs (39, 37, 38) constitute distribution channels (35, 36) for the gas flows, the said channels supplying channels which run over the central conductive zones (24) of the collectors substantially vertically.

Abstract: The fuel cell structure is constituted by a plurality of cells disposed in electrical contact with one another, each cell comprising two porous electrodes, an electrolyte filling the gap between the said electrodes, and two impermeable bipolar current collectors. One of the electrodes (2) is pressed against a frame (3) having a central orifice (4). One face of the said frame (3) includes grooves (11) for conveying electrolyte from an inlet orifice (8A) to a distribution manifold (12) which is in communication with the electrolyte compartment, and also for conveying electrolyte from the central compartment to an outlet orifice (8B). The electrolyte conveying network on the frame (3) is sealed by means of a second frame (55) made of insulating material and pressed over the said network. The frames are fixed together.