STACK STRUCTURE FOR FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a stack structure for a fuel cell which is bonded to a support plate using a jointing material so that a plurality of tabular cells are arranged in a stack, and is capable of suppressing formation of cracks in the bonding material.

SOLUTION: A shape of a side surface of one edge in the longitudinal direction of each of cells 100 has a second longitudinal direction (y-axis direction). A shape of each of insertion holes 211 into which to insert the edges of a plurality of cells formed on a surface of a support plate 210 has a symmetrical axis direction (the y-axis direction) with regard to axial symmetry. One edge of each of cells is loosely fit into a corresponding insertion hole 211 so that the second longitudinal direction coincides with the symmetrical axis direction of the insertion hole 211. A bonding material 300 is provided at each of bonding parts to one edge of the cell corresponding to each of insertion holes 211 so as to fill in a gap between an inner wall of the insertion hole 211 and an exterior wall of the one edge of the cell 100. A maximal value of a tilt angle of the second longer direction with regard to the symmetrical axis direction in each of the plurality of cells is equal to or less than 5.0°.

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