Fuel cell system for decreasing time for removing remaining...

H - Electricity – 01 – M

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H01M 8/04 (2006.01) H01M 8/00 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2588889

When a stop trigger of a fuel cell system (100) is turned on, air humidified by a humidifier (3) with an air humidification amount lower than during a normal operation is supplied to a fuel cell stack (1) so as to increase the water bring-out amount Qm generated in the fuel cell stack (1) when continuing a predetermined time Pg of power generation of the fuel cell stack (1). After this, power generation is stopped and the cathode side of the fuel cell stack (1) is Pp-purged by the air for a predetermined time.

Selon l~invention, lorsqu~un déclencheur d~arrêt d~un dispositif de pile à combustible (100) est allumé, de l~air humidifié par un humidificateur (3) avec une quantité d~humidification de l~air plus faible que lors d~un fonctionnement normal est fourni à un empilement de piles à combustible (1) de manière à augmenter la quantité Qm d~eau produite générée dans l~empilement de piles à combustible (1) lorsque l~on poursuit pendant un temps Pg prédéterminé la production d~énergie de l~empilement de piles à combustible (1). Après ceci, la production d~énergie est arrêtée et le côté de la cathode de l~empilement de piles à combustible (1) est purgé en Pp par l~air pendant un temps prédéterminé.

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