Patent ID: 8703356

Claim:
A separator of a fuel battery comprising a separator member and an adjacent member adjacent to the separator member in a cell stacking direction and joined to the separator member with an adhesive, wherein: application paths of the adhesive are provided on a joint surface of at least one of the separator member and the adjacent member, the application paths cross each other, and each application path comprises an application groove defined by convex walls provided on the joint surface as lateral surface walls, guide paths of the adhesive are provided on the convex wall by openings formed in parts of the convex wall, wherein at least one of the guide paths connects a cross point of the application paths to an outside of the separator with a straight line, the at least one of the guide paths comprises a concave groove defined by convex walls as lateral surface walls, the at least one of the guide paths is configured to guide redundant adhesive to the outside of the separator, and the at least one of the guide paths is flat and continues from the application paths, and a depression is formed on a bottom surface of the concave groove as an adhesive reservoir depressed with respect to the bottom surface of the application groove.