BRENNSTOFFZELLENPLATTEN.

摘要

A plate (30) for a fuel cell has an arrangement of ribs (58) defining an improved configuration of process gas channels (60) and slots on a surface of the plate which provide a modified serpentine gas flow pattern cross the plate surface. The channels (60) are generally linear and arranged parallel to one another while the spaced slots (62) allow cross channel flow of process gas in a staggered fashion which creates a plurality of generally mini-serpentine flow paths extending transverse to the longitudinal gas flow along the channels. Adjacent pairs of the channels are interconnected to one another in flow communication. Also, a bipolar plate has the aforementioned process gas channel configuration on one surface and another configuration on the opposite surface. In the other configuration, there are no slots and the gas flow channels have a generally serpentine configuration.