Heat insulation cell for fuel cell and manufacturing method...

H - Electricity – 01 – M

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Details

H01M 8/02 (2006.01) H01M 8/24 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2672935

A heat insulation cell for a fuel cell, in which deformation of a plate-like member (separator) and degradation in a seal function that are caused by heat produced during electric power generation are suppressed. The heat insulation cell (4) for the fuel cell (1) has a heat insulation layer constructed from one or two or more plate-like members (20) and a seal member (13). The heat insulation cell (4) has a communication section (11) for interconnecting the heat insulation layer and the outside, and the communication section (11) is provided at at least a portion of a seal line for sealing between the insulation layer and the outside of the cell (4). It is preferable that a projection is formed at the communication section (11), at a portion of at least either of the one or two or more plate-like members (20). It is also preferable that the heat insulation layer is constructed from a heat insulation member (10), which is placed at the communication section (11).

L'invention concerne une cellule à isolation thermique pour une pile à combustible, dans laquelle la déformation d'un élément de type plaque (séparateur) et une dégradation dans une fonction de scellement étanche qui sont provoquées par la chaleur produite pendant la génération d'énergie électrique sont supprimées. La cellule à isolation thermique (4) pour la pile à combustible (1) a une couche d'isolation thermique construite à partir d'un ou deux ou de plusieurs éléments de type plaque (20) et un élément de scellement étanche (13). La cellule à isolation thermique (4) a une section de communication (11) pour interconnecter la couche d'isolation thermique et l'extérieur, et la section de communication (11) est disposée sur au moins une partie d'une ligne de scellement étanche entre la couche d'isolation et l'extérieur de la pile (4). Il est préférable qu'une projection soit formée à la section de communication (11), à une partie d'au moins l'un ou l'autre de l'un ou deux ou de plusieurs éléments de type plaque (20). Il est également préférable que la couche d'isolation thermique soit construite à partir d'un élément d'isolation thermique (10), qui est placé à la section de communication (11).

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