Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1988-08-02
1990-02-27
Kalafut, Stephen J.
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 23, H01M 804
Patent
active
049045482
ABSTRACT:
In order to control a fuel cell having a fuel cell stack to which reformed fuel and oxidizing agent are supplied, an output current from the fuel cell is detected while the voltage of the fuel cell is maintained at a constant voltage and the amount of the fuel and/or the oxidizing agent is controlled in accordance with the detected output current to stably generate electric power. At least one of a plurality of unit cells constituting the fuel cell stack is used as a monitoring cell having a current-voltage characteristic curve which is lower than that of the other unit cells, and an output current from the monitoring cell is detected while the voltage of this cell is maintained at a constant voltage, and the supplied amount of the fuel and/or the oxidizing agent is controlled in accordance with the detected current value to stably generate electric power output.
REFERENCES:
patent: 3585077 (1971-06-01), Waldman
patent: 3745047 (1973-07-01), Franciullo et al.
patent: 4046956 (1977-09-01), Franciullo
patent: 4677037 (1987-06-01), Takabayashi
Fuji Electric & Co., Ltd.
Kalafut Stephen J.
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