UNITIZED FUEL CELL ASSEMBLY

摘要

A unitized fuel cell assembly includes a first flow field plate, a second fl ow field plate, and a membrane electrode assembly (MEA) provided between the first and second flow field plates. A hard stop arrangement, in one configuration, is provided between the first and second flow field plates. T he hard stop arrangement is dimensioned to limit compressive forces imparted to the MEA upon establishment of contact between the first and second flow fiel d plates under pressure. A sealing arrangement is provided between the first a nd second flow field plates and peripheral to the MEA. The unitized fuel cell assembly is configured as a stand-alone fuel cell unit that can be used alon e or in a stack of fuel cell units.