FUEL CELL SEPARATOR

A separator for a fuel cell includes protrusions spaced apart from each other. The protrusions are configured to contact a power generation portion. The separator includes a gas passage that extends between two adjacent ones of the protrusions. The gas passage includes ribs that protrude toward the power generation portion. The ribs include first ribs spaced apart from each other in an arrangement direction of the protrusions and a second rib located between adjacent ones of the first ribs in the arrangement direction. A downstream end of each of the first ribs includes a separated portion separated from the power generation portion. An upstream end of the second rib includes an inclined portion inclined so as to become closer to the power generation portion toward a downstream side. At least part of the inclined portion is located downstream of at least part of the separated portion.