Seal for porous metal support in a fuel cell

摘要

A unit for use in a fuel cell stack, the unit comprising a porous metal support with a seal made by local fusion and-having a seal depth that extends from the upper surface of the porous metal support to at least the bottom surface of the porous metal support, and wherein the seal is positioned along the periphery of the porous metal support, the seal being impermeable to gas transported in the plane of the porous metal support.