High temperature fuel cell, high temperature fuel cell stack...

Details High temperature fuel cell, high temperature fuel cell stack... High temperature fuel cell, high temperature fuel cell stack...

H - Electricity

01

M

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

Patent

CA 2227216

The proposed high-temperature fuel cell (2) has at least one interconnecting conducting plate (4, 16; 20, 22, 24) to which at least one electrode (8, 12) is allocated, a contact layer (6, 14) being provided between the interconnecting conducting plate (4, 16; 20, 22, 24) and electrode (8, 12). The contact layer (6, 14) is formed from a spinel-structured oxide mixed crystal powder which in addition to chromium contains another divalent element selected from the group containing Ti, V, Mn, Fe, Co and Cu. A contact layer (6, 14) of this composition has high thermodynamic stability as well as adequate electrical conductivity.

La pile à combustible (2) pour hautes températures selon l'invention comporte au moins une plaquette conductrice (4, 16; 20, 22, 24) d'interconnexion à laquelle est affectée au moins une électrode (8, 12), une couche de contact (6, 14) étant disposée entre la plaquette conductrice (4, 16; 20, 22, 24) d'interconnexion et l'électrode (8, 12). La couche de contact (6, 14) est constituée d'une poudre de cristaux mixtes à oxyde, à structure de spinelle, qui, en plus du chrome, contient un autre élément bivalent choisi dans le groupe comprenant Ti, V, Mn, Fe, Co et Cu. Une couche de contact (6, 14) de cette composition présente une grande stabilité thermodynamique ainsi qu'une conductivité suffisante.

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