Abstract: A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal material is then connected to an external filling port and injected into the groove network, and the seal material is then cured to form the seal. There is thus formed a “seal in place”, that is robust and can accommodate variations in tolerances and dimensions, and that can be bonded, where possible, to individual elements of the fuel cell assembly. A release agent can be applied on the surface of fuel cell components or added to the seal material to enable the fuel cell stack to be easily disassembled and defective cells to be repaired without discarding the whole fuel cell stack.

Abstract: The present invention provides for a terminal plate for an electrochemical cell. The terminal plate is a metal plate having at least one manifold region with at least one aperture to permit the passage of a fluid therethrough. The terminal plate has a corrosion resistant coating applied to at least a portion of the at least one manifold region including the at least one aperture. A method for producing the terminal plate is also disclosed. A method for producing a fuel cell stack is also disclosed.

Abstract: The present invention provides for an end plate for an electrochemical cell. The end plate is a metal plate having at least one manifold region with at least one connection port to permit the passage of a fluid therethrough. The nd plate has a corrosion resistant coating applied to the at least one manifold region including the at least one connection port. A method for producing the end plate is also disclosed.