Interconnector design for solid oxide fuel cell stacks

Details Interconnector design for solid oxide fuel cell stacks Interconnector design for solid oxide fuel cell stacks

H - Electricity

01

M

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

Patent

CA 2373810

A solid oxide fuel cell stack includes a plurality of solid oxide fuel cells juxtaposed to one another, with at least two of the cells having a substantially flat configuration; and each of the two cells having an anode layer (19), an electrolyte layer (18), and a cathode layer (17). The fuel stack also includes at least one interconnect (12) disposed among the plurality of cells, with the interconnect being capable of providing an electrical connection between the cells, and the interconnect comprising a plurality of first extensions (13a) on a first surface (20) of the interconnect and a plurality of second depressions (22b) on a second surface (27) of the interconnect. The first extensions and second depressions are integrally formed with one another to provide a plurality of oxidant passageways (14) and fuel passageways(23).

L'invention concerne un empilement de piles à combustible à oxyde solide comprenant plusieurs piles à combustible à oxyde solide juxtaposées, au moins deux de ces piles présentant une configuration sensiblement plate. Chacune des deux piles comprend une couche anodique (19), une couche électrolytique (18) et une couche cathodique (17). L'empilement comprend également au moins une interconnexion (12) placée parmi les multiples piles. L'interconnexion permet de fournir une connexion électrique entre les piles; elle comprend plusieurs extensions de connexion (13a) sur une première surface (20) de l'interconnexion et plusieurs secondes dépressions (22b) sur une seconde surface (27) de l'interconnexion. Les premières extensions et les secondes dépressions sont formées de manière à faire partie intégrante les unes des autres, afin d'obtenir une multitude de voies de passage d'oxydant (14) et de voies de passage de combustible (23).

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