Planar solid oxide fuel cell stack with metallic foil...

H - Electricity – 01 – M

Patent

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Details

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

Patent

CA 2391487

A solid oxide fuel cell stack having a plurality of integral component fuel cell units, each integral component fuel cell unit having a porous anode layer, a porous cathode layer, and a dense electrolyte layer disposed between the porous anode layer and the porous cathode layer. The porous anode layer forms a plurality of substantially parallel fuel gas channels on its surface facing away from the dense electrolyte layer and extending from one side to the opposite side of the anode layer, and the porous cathode layer forms a plurality of substantially parallel oxidant gas channels on its surface facing away from the dense electrolyte layer and extending from one side to the opposite side of the cathode. A flexible metallic foil interconnect (13) is provided between the porous anode and porous cathode of adjacent integral component fuel cell units (10).

L'invention concerne un empilement de piles à combustible à oxyde solide comprenant une pluralité d'éléments de pile à combustible formant un tout, chacun de ces éléments étant constitué d'une couche anodique poreuse, d'une couche cathodique poreuse, et d'une couche d'électrolyte dense disposée entre la couche anodique poreuse et la couche cathodique poreuse. La couche anodique poreuse forme une pluralité de canaux de gaz combustible sensiblement parallèles sur sa surface qui se trouve à distance de la couche d'électrolyte dense et qui s'étend d'un côté à l'autre de la couche anodique. La couche cathodique poreuse forme une pluralité de canaux de gaz oxydant sensiblement parallèles sur sa surface qui se trouve à distance de la couche électrolyte dense et qui s'étend d'un côté à l'autre de la cathode. Une feuille métallique souple d'interconnexion (13) est disposée entre l'anode poreuse et la cathode poreuse d'éléments (10) de pile à combustible adjacents.

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