| 摘要 |
An MEA layer (20) is provided for use in a PEM-type fuel cell stack (11), having a fuel gas flow field adjacent one surface and an oxidant gas flow field adjacent the other surface. The flowpaths of the flow fields comprise parallel flow channels (23, 24) extending longitudinally and interconnected at their ends to form the flowpaths. The interconnections are formed by an array of spaced interconnection couplings, that may be truncated portions (88) of undulate MEA layers. 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 or moulding the MEA layer. |
