Sealing material coating method for fuel cell-use separator

Details Sealing material coating method for fuel cell-use separator Sealing material coating method for fuel cell-use separator

2007-06-05

2007-06-05

Talbot, Brian K. (Department: 1762)

Coating processes

Electrical product produced

Fuel cell part

C427S008000, C427S287000, C427S356000

Reexamination Certificate

active

10482467

ABSTRACT:
A method for coating a sealant (39) on a separator (40) for a fuel cell. The separator has a sealing groove (118) formed therein, and widths of the sealing groove at a coating-start portion (39a) and a coating-end portion (39b) of the sealant are made greater than widths of remaining portions of the sealing groove. The sealant coating-start portion and the coating-end portion are made to intersect at a place where the width of the sealing groove is large. Adhesion between the coating-start portion and the coating-end portion is improved, and also, degrees of freedom of a sealant coated position increase, and sealability of a cell for a fuel cell is improved.

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