Aluminous interconnector for fuel cells

Details Aluminous interconnector for fuel cells Aluminous interconnector for fuel cells

H - Electricity

01

M

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

Patent

CA 2415391

The invention relates to an interconnector comprising contact surfaces for contacting the electrodes of high-temperature fuel cells and to a method for producing said interconnector. The interconnector (5) is aluminous and connected to at least one nickel foil (13) by the formation of an alloy so that the electrodes of contacting contact surfaces contain nickel- aluminum alloys. The nickel-aluminum alloys result in a significant and long-time stable reduction of the contact resistance, whereby the nickel-aluminum alloys can be used, in particular, for contacting the anode (1). Particular embodiments provide that perforated plate-shaped, strip- shaped or punctiform nickel foils are connected to the contact surfaces of the interconnector by the formation of an alloy.

L'invention concerne un interconnecteur à surfaces de contact pour connecter des électrodes de cellules à combustible haute température, ainsi qu'un procédé permettant de le produire. Ledit interconnecteur (5) contient de l'aluminium et est connecté à au moins une pellicule de nickel (13) par formation d'un alliage, de manière que les surfaces de contact connectant les électrodes contiennent des alliages nickel-aluminium. L'utilisation d'alliages nickel-aluminium permet de réduire sensiblement et de manière durablement stable la résistance de contact. Les alliages nickel-aluminium peuvent s'utiliser notamment pour connecter l'anode (1). Selon des modes de réalisation particuliers, des pellicules de nickel sous forme de tôles perforées, de bandes ou de points sont connectées aux surfaces de contact de l'interconnecteur par formation d'un alliage.

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