Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1998-08-18
2000-09-12
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 34, 429 30, 429 22, 429 13, H01M 804
Patent
active
061175773
ABSTRACT:
An ambient pressure fuel cell system is provided with a fuel cell stack formed from a plurality of fuel cells having membrane/electrode assemblies (MEAs) that are hydrated with liquid water and bipolar plates with anode and cathode sides for distributing hydrogen fuel gas and water to a first side of each one of the MEAs and air with reactant oxygen gas to a second side of each one of the MEAs. A pump supplies liquid water to the fuel cells. A recirculating system may be used to return unused hydrogen fuel gas to the stack. A near-ambient pressure blower blows air through the fuel cell stack in excess of reaction stoichiometric amounts to react with the hydrogen fuel gas.
REFERENCES:
patent: 5441821 (1995-08-01), Merritt et al.
patent: 5635039 (1997-06-01), Cisar et al.
Masahiro Watanabe, Yasutaka Satoh, and Chiyoka Shimura, "Management of the Water Content in Polymer Electrolyte Membranes with Porous Fiber Wicks," J. Electrochem. Soc., vol. 140, No. 11, pp. 3190-3193, Nov. 1993.
Alejandro R.
Nuzzolillo Maria
Regents of the University of California
Wilson Ray G.
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