Method and device for deionizing cooling media for fuel cells

Details Method and device for deionizing cooling media for fuel cells Method and device for deionizing cooling media for fuel cells

H - Electricity

01

M

H01M 8/04 (2006.01)

Patent

CA 2435593

The present invention relates to a process for the deionization of a cooling medium in a fuel cell (11) circulating in a cooling circuit (20), in which the cooling medium is subjected to at least intermittent, but preferably continuous, electrochemical deionization. To this end, at least one electrode deionization cell (23), through which a diluate stream (27) serving as cooling medium and a concentrate stream (28) flow, is arranged in the cooling circuit. The concentrate stream (28) may be part of a secondary cooling circuit.

L'invention concerne un procédé pour la désionisation d'un milieu réfrigérant, circulant dans un circuit de refroidissement (20), d'une pile à combustible (11). Selon l'invention, on désionise électrochimiquement le milieu réfrigérant au moins de façon intermittente, mais de préférence en continu. A cet effet, on place dans le circuit de refroidissement au moins une cellule d'électrodésionisation (23) qui est traversée par un débit diluat (27) servant de milieu réfrigérant et par un débit concentrat (28). Le débit concentrat (28) peut faire partie d'un circuit de refroidissement secondaire.

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