Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1995-10-27
1998-10-20
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 30, 429 38, 429 39, H01M 804
Patent
active
058244280
ABSTRACT:
A fuel cell includes a sheet-shaped solid electrolyte which exhibits ion conductivity, a fuel electrode to which is supplied fuel functioning as a negative electrode active material, and an oxygen electrode to which is supplied oxygen functioning as a positive electrode active material. The fuel electrode is positioned on one surface of the solid electrolyte while the oxygen electrode is positioned on the opposite surface of the solid electrolyte. A fuel electrode electricity collector has a plurality of first projection portions that contact the surface of the fuel electrode that faces away from the solid electrolyte. As a result, a plurality of fuel passages are formed through which fuel is to be passed. An oxygen electrode electricity collector has a plurality of second projecting portions that contact the surface of the oxygen electrode facing away from these solid electrolyte. As a result, a plurality of oxygen passages are formed through which oxygen is to be passed. At least one of the first projecting portions or one of the second projecting portions is provided with a curved portion. This results in an improvement in the electrical collectability of the fuel cell.
REFERENCES:
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patent: 4997726 (1991-03-01), Ariyama et al.
patent: 5108849 (1992-04-01), Watkins et al.
patent: 5145754 (1992-09-01), Misawa et al.
patent: 5186806 (1993-02-01), Clark et al.
patent: 5213910 (1993-05-01), Yamada
patent: 5419980 (1995-05-01), Okamoto et al.
Matsutani Taku
Nishida Koji
Yamada Daisuke
Aisin Seiki Kabushiki Kaisha
Skapars Anthony
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