FUEL CELL WITH INTEGRATED FEEDBACK CONTROL

摘要

A recirculating reagent fuel-cell (5) includes an ion-exchange membrane (29) interposed between an anode (31) and cathode (27) anode to form a membrane/electrode assembly (MEA), the MEA interposed between a fuel gas diffusion layer (32) and an oxidant gas diffusion layer (26). An oxidant and fuel flow network are provided having an input portion for supplying reagent and an output portion for removing reagent after electrochemical reaction. The oxidant flow network includes a cathode recirculation loop (15), the cathode recirculation loop feeding back a portion of the oxidant after electrochemical reaction to the oxidant input portion. The cathode recirculation network can use entirely passive components which do not require electricity to operate, such as a pulse pressure regulator (25) and a jet pump (50).