| 摘要 |
PROBLEM TO BE SOLVED: To make a fuel cell small and lightweight by installing each of plural fastening bolts in a gas supply path or gas exhaust path. SOLUTION: Plural fastening bolts with flow path 24 having a path for supplying and discharging either one of reaction gas or cooling water to and from the inside and outside of a cell series stack are installed in fastening plates 16. The fastening bolts with flow path 24 are arranged in the same position as either one of a gas supply hole, a gas exhaust hole, a cooling water supply hole, and a cooling water exhaust hole in a suitable position of a unit cell 13, and have slightly smaller diameter than that of gas and cooling water supply holes/exhaust holes passed through. When the stack is assembled, plural fastening bolts 24 with flow path are inserted into bolt arranging holes installed on the end surface of one fastening plate 16, then inserted into gas and cooling water supply and exhaust holes installed in the unit cell 13, a current collecting plate 14, an electric insulating plate 15, and the fastening plate 16 to position in stacking.
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