Fuel-cell stack

Details Fuel-cell stack Fuel-cell stack

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2461743

During the humidification of operating gases for a fuel cell (101), the operating gases cool to such an extent as a result of the loss of evaporation heat that they cannot absorb enough humidity to prevent damage to the membrane of the fuel cell (101). To solve this problem, a fuel cell assembly (50) comprising a humidification cell (1), which contains a planar heating element (7), is provided. The humidification cell (1) is configured in terms of shape, location and materials in the same way as a fuel cell (101) of the fuel-cell stack (50).

Lors de l'humidification de gaz de fonctionnement pour une pile à combustible (101), les gaz de fonctionnement se refroidissent par perte de chaleur d'évaporation au cours du processus d'humidification, à tel point qu'ils ne peuvent plus absorber suffisamment d'humidité pour ne pas endommager la membrane de la pile à combustible (101). Pour résoudre ce problème, on utilise un système de piles à combustible (50) comprenant une cellule d'humidification (1) comportant un élément chauffant (7) plat. Cette cellule d'humidification (1) est, de par sa forme, sa structure et ses matériaux, de conception analogue à celle d'une pile à combustible (101) du bloc de piles à combustibles (50).

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