Fuel cell separator plate

摘要

A fuel cell stack and a bipolar plate assembly is provided that may include straight-through tunnels to transport fluids from one side of a header seal to an opposite side of a header seal, fluidly connecting fuel cell stack reactant headers and bipolar plate reactant flow channels.

主权项

1. A product comprising:
a fuel cell stack comprising a plurality of adjacent bipolar plates and a reactant header, the reactant header comprising a first header opening in each of the bipolar plates and a header seal disposed between each adjacent bipolar plate and circumscribing each of its adjacent first header openings, wherein each bipolar plate further comprises reactant flow channels and a first tunnel region fluidly connecting the reactant flow channels and the reactant header and wherein at least one of the first tunnel regions comprises a straight-through tunnel extending straight through the header seal.