Fuel cell, has cathode and anode associated to bi-polar metallic blocks through gas diffusion layer, where blocks surface contacting with layer is deformed to present irregularities similar to layers surface contacting with block

摘要

Cell has a proton exchange membrane (1) associated to a cathode (3) and to an anode (3), that are associated externally to bi-polar metallic blocks (5) through a gas diffusion fibrous layer (7). Surfaces of the block contacting with fibrous layer is deformed to present irregularities similar to surface of the fibrous layer that contacts the metallic.