Apparatus and method for automatically stacking fuel cell...

H - Electricity – 01 – M

Patent

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

Patent

CA 2480950

Stacking porous and non-porous material layers involves applying vacuum to a first porous layer to stabilize same relative to a support structure. The support structure and/or a non-porous layer are moved to establish contact between the non-porous layer and the first porous layer. The first porous and non-porous layers define a sub-assembly. While applying vacuum to the sub- assembly, one or both of the support structure and a second layer are moved to establish contact between the second layer and the non-porous layer. Vacuum applied to the sub-assembly maintains positional stability of the sub-assembly layers relative to the support structure while the second layer is moved into contact with the non-porous layer. Vacuum is subsequently removed to facilitate transporting of the material layer stack. Material layers of a fuel cell, including first and second fluid transport layers and a membrane, are well suited for automated stacking.

L'invention concerne un procédé d'empilement de couches de matériaux poreux et non poreux comportant l'application de vide sur la première couche poreuse pour la stabiliser par rapport à une structure support. On déplace la structure support et/ou une couche non poreuse pour établir un contact entre la couche non poreuse et la première couche poreuse. La première couche poreuse et la première non poreuse définissent un sous-ensemble. Tout en appliquant du vide sur ce sous-ensemble, on déplace au moins une structure support et une deuxième couche pour établir le contact entre la deuxième couche et la couche non poreuse. Le vide appliqué au sous-ensemble maintient la stabilité de position des couches du sous-ensemble par rapport à la structure support tandis que la deuxième couche est amenée en contact avec la couche non poreuse. Ensuite, le vide est retiré pour faciliter le transport d'une pile couche de matériau. Les couches de matériaux d'une pile à combustible, comportant une première et une deuxième couche de transport de fluide et une membrane, sont parfaitement adaptées à un empilement automatique.

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