Method of stopping the operation of phosphoric acid type fuel ce

Details Method of stopping the operation of phosphoric acid type fuel ce Method of stopping the operation of phosphoric acid type fuel ce

1990-09-19

1992-09-22

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 49, H01M 804

Patent

active

051495996

ABSTRACT:
When the operation of a fuel cell using phosphoric acid as an electrolyte is stopped, the concentration of phosphoric acid is decreased to thereby lower crystallization temperature of the electrolyte and at the same time reactive gas remaining inside the main body of the fuel cell is replaced by an inert gas.

REFERENCES:
patent: 4294892 (1981-10-01), Alfenaar
patent: 4555452 (1985-11-01), Kahara et al.
patent: 4810594 (1989-03-01), Bregoli et al.

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