High-temperature fuel cell

Details High-temperature fuel cell High-temperature fuel cell

H - Electricity

01

M

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

Patent

CA 2368395

During operation of a high-temperature fuel cell (1) corrosion to the interconnector on the anode side is a problem. The inventive method substantially avoids this problem by using at least two metallic functional layers (8, 9) which are applied one on top of the other to the interconnector (2). The lower functional layer (9) contains copper and the upper functional layer (8) contains nickel. Functional layers (8, 9) of this type establish a potential barrier for oxygen ions with respect to the interconnector (2).

Lors du fonctionnement d'une pile à combustible haute température (1), on est confronté au problème de la corrosion de l'interconnecteur côté anode. L'invention permet de supprimer dans une large mesure ce problème par l'application sur ledit interconnecteur (2) d'au moins deux couches fonctionnelles métalliques (8, 9) superposées. La couche inférieure (9) contient du cuivre et la couche supérieure (8) du nickel. Ces couches fonctionnelles (8, 9) établissent vis-à-vis de l'interconnecteur (2) une barrière de potentiel pour les ions oxygène.

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