Abstract: An electrochemical reactor is provided, including an electrical connector including an end part occupying a position referred to as engaged in a stack of electrochemical cells, including: an electrical contact portion; and a blocking portion, including: either a blocking through-orifice receiving by insertion an abutment element of an electrochemical cell, or a blocking element introduced by insertion into an abutting through-orifice of the electrochemical cell, the insertion, when the end part occupies the engaged position, leading to the formation of an abutment opposing the retraction of the end part out of the engaged position.

Abstract: Electrochemical system comprising a fuel cell comprising a stack (2) of electrochemical cells electrically connected to one another by bipolar plates (A, B, C) interposed between two successive electrochemical cells of the stack, where said stack (2) is positioned between two terminal plates (4), where said stack extends in a longitudinal axis (Z), where said electrochemical system comprises means for supplying the cells with reactive fluids, means of circulation of a heat-transfer fluid through the stack, and at least one induction heating system comprising a pair of inductors facing a lateral face of the stack, where the currents flowing in the two inductors flow in opposite directions.

Abstract: A fuel cell including a stack of electrochemical cells, a pair of end plates located at each end of the stack of cells, and a cooling system for cooling the cells. The cooling system includes a coolant fluid circulating in closed loop through the stack and in the end plates, such that the coolant fluid exchanges heat with the end plates.

Abstract: The invention relates to a method for protecting a set of electrochemical cells incorporated into a fuel cell stack from corrosion during an operation for shutting down the fuel cell stack, which method comprises steps of: measuring the voltage across the terminals of each of the cells to be protected; when the voltage measured for a cell is above a protection threshold, discharging this cell into an electrical load; when the voltage measured for a cell is below said protection threshold, disconnecting this cell from the electrical load.

Abstract: The invention relates to a method for protecting a set of electrochemical cells (C1, C2, C3) incorporated into a fuel cell stack from corrosion during an operation for shutting down the fuel cell stack, which method comprises steps of: measuring the voltage across the terminals of each of the cells to be protected; when the voltage measured for a cell is above a protection threshold, discharging (50) this cell into an electrical load (R1, R2, R3); when the voltage measured for a cell is below said protection threshold, disconnecting this cell from the electrical load.

Abstract: A fuel cell including a stack of electrochemical cells, a pair of end plates located at each end of the stack of cells, and a cooling system for cooling the cells. The cooling system includes a coolant fluid circulating in closed loop through the stack and in the end plates, such that the coolant fluid exchanges heat with the end plates.

Abstract: A flat fuel cell including: at least two unit cells, a casing provided with supports for each of said unit cells, said supports offering a bearing surface to a periphery of the unit cells, a sealing member interposed between the periphery of each unit cell and the surface of an associated support, and a cover forming a compression element coming into abutment on the periphery of each unit cell opposite the sealing member and cooperating directly with the associated support in order to provide compression of the sealing member.

Abstract: Flat fuel cell comprising at least two unit cells, a casing provided with supports for each of said unit cells, said supports offering a bearing surface to a periphery of the unit cells, sealing means interposed between the periphery of each unit cell and the surface of an associated support, and a cover forming a compression element coming into abutment on the periphery of each unit cell opposite the sealing means and cooperating directly with the associated support in order to provide compression of the sealing means.