Flat plate fuel cell stack

H - Electricity – 01 – M

Patent

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Details

H01M 8/00 (2006.01) H01M 8/24 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2458074

A fuel cell unit includes a cassette holder for a ceramic fuel cell element sandwiched between interconnects of a novel design. The cassette holder isolates the cell from the surrounding interconnect by means of a pliant seal within a rigid frame, thereby reducing the possibility of breakage of the brittle cells. The cassettes are assembled between an upper and lower interconnect to isolate the upper face of the cell from the lower face of the cell. A fuel cell unit includes an upper and lower interconnect containing a cassette. A fuel cell stack is formed from a plurality of fuel cell units.

L'invention concerne un bloc pile à combustible comprenant une cassette de support destinée à un élément de pile à combustible, intercalée entre des éléments d'interconnexion d'un nouveau modèle. Cette cassette de support comporte un joint souple installé dans une structure rigide, qui permet d'isoler la pile à combustible des éléments d'interconnexion qui l'entourent, et d'empêcher ainsi la rupture des piles fragiles. Les cassettes sont installées entre un élément d'interconnexion supérieur et un élément d'interconnexion inférieur, ce qui permet d'isoler la face supérieure de la pile de la face inférieure de la pile. L'invention concerne également un bloc pile à combustible qui comprend un élément d'interconnexion supérieur et un élément d'interconnexion inférieur entourant une cassette. Un empilement de piles à combustible peut être formé à partir d'une pluralité de tels blocs.

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