Fuel cell plate

A plate for a fuel cell of the proton-exchange membrane type, the plate being arranged in a vertical plane when in a usage position;

• the plate comprising:
• a reactive face and a cooling face opposite one another;
• the reactive face being configured to face an Electrode Membrane Assembly and being equipped with reliefs and recesses forming a reagent circuit that is configured to circulate a reactive fluid;
• the reagent circuit comprising an inlet which opens into a reagent distribution port;
• a reagent inlet manifold port separate from the reagent distribution port;
• the reagent inlet manifold port being arranged to supply reagent to the inlet of the reagent circuit via an inlet passage which brings the reagent inlet manifold port into fluidic communication with the reagent distribution port;
• wherein the reagent circuit comprises an outlet which opens into a reagent discharge port;
• a reagent outlet manifold port separate from the discharge port;
• the outlet manifold port being arranged to recover the reagent leaving the reagent circuit via an outlet passage which brings the outlet manifold port into fluidic communication with the discharge port;
• wherein the vertical usage position of the plate defines a vertical longitudinal direction between an upper edge and a lower edge of the plate;
• wherein the discharge port extends in a vertical longitudinal direction between an upper end and a lower end;
• wherein the vertical plane comprises a first axis extending in the vertical longitudinal direction and passing through half the largest width of the outlet manifold port, the width being measured in the vertical plane and in a direction orthogonal to the first axis;
• the vertical plane further comprising a second axis, orthogonal to the first axis and passing through a tangent to the lower end of the reagent discharge orifice;
• wherein the outlet manifold port extends in the vertical longitudinal direction between an upper end and a lower end;
• the outlet manifold port comprising an upper inner edge and a lower inner edge which meet at the second axis;
• the outlet manifold port comprising, in a section passing through the vertical plane, an upper surface delimited by the upper inner edge and the second axis and a lower surface delimited by the lower inner edge and the second axis;
• wherein the lower surface is situated mostly between the reagent circuit and the first axis.