Fuel cell system

Details Fuel cell system Fuel cell system

2003-11-12

2009-10-20

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000

Reexamination Certificate

active

07604884

ABSTRACT:
A fuel cell generates electric power based on electrochemical reaction of reaction gases. A gas feed stopping device stops the feed of reaction gases into the fuel cell. At the time the power generation by the fuel cell is terminated, the fuel cell continues power generation for a while under a condition that the feed of one of the reaction gases is stopped by the gas feed stopping means. With this operation, the residual reaction gas in the fuel cell is consumed smoothly while the fuel cell continues power generation after the feed of one reaction gas is stopped. The electric potential of a cathode electrode decreases promptly. Deterioration of the cathode electrode is surely prevented.

REFERENCES:
patent: 2001/0055705 (2001-12-01), Yagi
patent: 09-027336 (1997-01-01), None
patent: A 9-27336 (1997-01-01), None
patent: A 11-191424 (1999-07-01), None
patent: A 2001-345114 (2001-12-01), None

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