Sealing structure of fuel cell and manufacturing method of same

Details Sealing structure of fuel cell and manufacturing method of same Sealing structure of fuel cell and manufacturing method of same

H - Electricity

01

M

H01M 8/24 (2006.01) H01M 2/08 (2006.01) H01M 2/14 (2006.01) H01M 4/86 (2006.01)

Patent

CA 2614657

A stack structure of a fuel cell according to an aspect of the invention includes a plurality of separators of the fuel cell, and a protruding portion which has a tip portion that contacts a reference portion of an assembly jig during assembly of the fuel cell. Since the tip portion of the protruding portion contacts the reference portion of the assembly jig, an adhesive agent does not come out from the tip portion of the protruding portion. Therefore, it is possible to prevent positioning accuracy in stacking cells from being reduced. The reduction of the positioning accuracy is due to adhesion of the spreading adhesive agent to the reference portion of the assembly jig. In addition, it is possible to prevent a short-circuit from occurring. The occurrence of the short-circuit is due to deformation of the separator caused by making the separator contact the reference portion of the assembly jig.

Selon un aspect de l'invention, il s'agit d'une structure d'empilement d'une pile à combustible qui comprend plusieurs séparateurs pour la pile à combustible et une partie saillante dotée d'une pointe qui entre en contact avec la partie correspondante d'un bâti de montage à l'assemblage de la pile. Puisque la pointe de la partie saillante entre en contact avec la partie correspondante du bâti de montage, aucun agent adhésif ne s'écoule de la pointe de la partie saillante. On évite ainsi toute perte de précision du positionnement dans l'empilement des piles, cette perte étant causée par l'adhérence de l'agent adhésif qui s'étend à la partie correspondante du bâti de montage. De plus, la structure permet d'empêcher les courts-circuits causés par la déformation du séparateur dans le cas où il entrerait en contact avec la partie correspondante du bâti de montage.

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