Ion exchange membrane fuel cell power plant with water managemen

Details Ion exchange membrane fuel cell power plant with water managemen Ion exchange membrane fuel cell power plant with water managemen

1995-06-23

1997-12-23

Le, Hoa Van

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 25, 429 26, 429 33, H01M 800

Patent

active

057005958

ABSTRACT:
A proton exchange membrane fuel cell device with an internal water management and transfer system includes a plurality of adjacently arranged proton exchange membrane assemblies including a proton exchange membrane component; a pair of porous anode and cathode catalyst layers situated on either side of the proton exchange membrane; and porous plate assemblies interposed between and in contact with each of the adjacent proton exchange membrane assemblies. Oxidant gas is supplied to oxidant gas supply channels, and fuel gas to fuel gas supply channels formed in the porous plate assemblies for distribution to the cathode and anode catalyst layers, respectively. A water coolant circulating system is formed in each of the porous plate assemblies and causes each of the porous plate assemblies to become saturated with coolant water. The reactant flow fields are pressurized to a pressure which exceeds the coolant water circulating pressure by a selected .DELTA.P so as to ensure that product water formed on the cathode side of each membrane assembly will be pumped through the porous plates into the coolant water flow field and become entrained in the circulating coolant water stream.

REFERENCES:
patent: 3172784 (1965-03-01), Blackmer
patent: 5200278 (1993-04-01), Watkins et al.
patent: 5260143 (1993-11-01), Voss et al.
patent: 5366818 (1994-11-01), Wilkinson et al.
patent: 5372896 (1994-12-01), Binder et al.
patent: 5441821 (1995-08-01), Merritt et al.

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