Patent ID: 7846607

Claim:
A separator mounted to one side surface of a membrane-electrode assembly for a fuel cell, the separator having channels for self-humidification, comprising: a main separator and a sub separator coupled directly to a lower surface of the main separator away from the membrane-electrode assembly; a plurality of intake manifolds and exhaust manifolds perforated on both end portions of the main separator and the sub separator and through which fuel inflows and is exhausted; a plurality of channels formed on an upper surface of the main separator so that fuel is supplied through different intake manifolds and is exhausted through different exhaust manifolds such that directions of fuel flow become opposite to one another; auxiliary channels formed on an upper surface and a lower surface of the sub separator so as to connect the intake manifolds and the exhaust manifolds to the channels; and a connecting channel which is formed on the lower surface of the main separator at positions corresponding to the auxiliary channels so as to be communicated with the channels, and connecting the channels and the auxiliary channels such that the channels and the auxiliary channels communicate with one another.