Solid oxide fuel cell device wth a component having a...

H - Electricity – 01 – M

Patent

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

Patent

CA 2535758

A solid oxide fuel cell device comprises: (a) zirconia based electrolyte; (b) at least one ectrode situated on the electrolyte; (c) a component situated in close proximity to the electrolyte, the component comprising at least one metal or metal oxide capable, at temperatures of above 625~C, of: (i) migrating to the surface of this component, and (ii) being re-deposited on said at least one electrode; and (d) a protective coating situated on at least one surface of this component. The protective coating substantially prevents the at least one metal or metal oxide from leaving the surface of the component, which is situated under said protective coating. The protective coating is also being substantially impermeable to oxygen.

Dispositif pile à combustible à oxyde solide qui comprend (a) un électrolyte à base de zircone, (b) au moins une électrode située sur l'électrolyte, (c) un composant situé adjacent à l'électrolyte, ce composant comportant au moins un métal ou oxyde métallique capable, à des températures supérieures à 625 ·C, (i) de migrer vers la surface dudit composant et (ii) d'être redéposé sur ladite électrode au moins et (d) un revêtement protecteur situé sur au moins une surface dudit composant. Le revêtement protecteur empêche pratiquement le métal ou l'oxyde métallique de quitter la surface du composant qui est situé sous ce revêtement protecteur. Le revêtement protecteur est également sensiblement imperméable à l'oxygène.

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