High-temperature fuel cell

Details High-temperature fuel cell High-temperature fuel cell

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 8/24 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2368392

The problem associated with a high-temperature fuel cell (10, 20, 30) is that the electrical serial resistance increases during the operation of said high- temperature fuel cell (10, 20, 30). This increase is caused by an oxidation of the bipolar plate (11, 21, 31) surface on the combustion gas side. An oxidation of this type is largely prevented by an oxidation buffer element which is located in the combustion gas chamber (13) and which absorbs the oxygen.

Lors du fonctionnement d'une pile à combustible haute température (10, 20, 30), on est confronté au problème de l'élévation de la résistance électrique totale. Cette élévation est due à l'oxydation de la surface de la plaque bipolaire (11, 21, 31) du côté du gaz combustible. On peut empêcher dans une large mesure ladite oxydation en plaçant dans le compartiment à gaz (13) un tampon d'oxydation qui absorbe l'oxygène.

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