SPRING LOADED FUEL CELL ASSEMBLY WITH INJECTION MOLDED FRAME AND PINS

摘要

A spring loaded direct oxidation fuel cell assembly reduces the effects of pre- compression relaxation. A near flat spring and a distribution plate form a spring as- sembly that is disposed between a membrane electrode assembly and one of the current collectors in the fuel cell. The components are assembled into a fuel cell assembly and are precompressed, and a spring yielding process is performed. While precompression is being applied, a set of pins and a plastic frame are insert molded around the fuel cell assembly to hold the components in place. Subsequently, as the precompression re- laxes, the spring assembly forces act to maintain an evenly distributed compression on the MEA, thereby compensating for the loss of precompression. A related method of manufacturing a fuel cell assembly is provided.