Fuel cell and separator for the same

Details Fuel cell and separator for the same Fuel cell and separator for the same

H - Electricity

01

M

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

Patent

CA 2648758

The contraction and deformation of a seal member are inhibited. To realize this, in a separator (20 (20a to 20d)) in which the shapes of projections and recesses forming at least fluid passages are inverted from each other on the front surface and the back surface of the separator and which is provided with a manifold (16b) for supplying and discharging a fluid, the separator, when a seal member for sealing the fluid is provided along the edge side (20e) of the separator (20) forming the contour of the manifold (16b), a projecting section (21) capable of functioning as a spacer between the separator (20) and another member adjacent to the separator is provided between the seal member (13c) and the edge side (20e).

Selon la présente invention, le rétrécissement et la déformation d'un élément étanche sont supprimés. Dans un séparateur (20 (20a-20d)), au moins les formes inégales destinées à former un canal d'écoulement pour un fluide sont dans un rapport inversé au niveau des surfaces avant et arrière, et une tubulure (16b) destinée à alimenter et décharger le fluide est formée. Lorsqu'un élément étanche (13c) destiné à être étanche par rapport au fluide le long de la périphérie (20e) du séparateur (20) formant le contour de la tubulure (16b) est disposé, une section saillante (21), qui peut fonctionner en tant qu'espaceur entre le séparateur (20) et tout autre élément à côté du séparateur, est disposée entre l'élément étanche (13c) et la périphérie (20e).

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