FUEL CELL STACK WITH CONVERGING CHANNELS

摘要

A fuel cell stack structure having an asymmetric fine flow path between a cooling water flow path and a fuel gas flow path is provided to maximize humidifying efficiency without using an additional humidifier, and to reduce the volume and weight of a fuel cell stack. A fuel cell stack structure comprises: a cooling water flow path(40) for introducing/discharging cooling water; a fuel gas flow path(70) formed in the cooling water flow path while being spaced apart therefrom by a uniform distance; and a fine flow path(55) connecting a first connection hole(50) formed in the cooling water flow path and a second connection hole(60) formed in the fuel gas flow path. In the fine flow path, the first connection hole is larger than the second connection hole in diameter.