| 摘要 |
A separator plate (10) is provided for use in a fuel cell stack, having a fuel gas flow field (21) adjacent one surface and an oxidant gas flow field adjacent the other surface. The fuel cells in the stack are advantageously PEM-type fuel cells having undulate membrane electrode assemblies. The flowpaths of the flow fields comprise parallel flow channels extending longitudinally and interconnected at their ends to form the flowpaths. The interconnections are formed by an array of spaced interconnection couplings (12, 14), that may be depressed cavities in the separator plates. The couplings for the oxidant gas flow channels are offset from those for the fuel flow channels. The interconnecting couplings may be formed by stamping, machining, or moulding the separator plate. |
