Bipolar plate for fuel cells used in vehicle electrics, especially urban buses and trams, but also for fixed installations such as hospitals, has two metallic plates with silicone sealing joints between them

摘要

The bi-polar plate has a framework comprising two metallic plates (20) having recesses at two levels making up two circulation channels for fuel (21S,21l), with an internal space for refrigerant liquid, and providing a peripheral space permitting the placing of a casing (11) for the distribution of refrigerant, and fuel. Two joints (4,5) and a spacer (16) completes the mounting.