초록 ▼

The present invention provides a polymer electrolyte fuel cell stack that includes an inlet manifold that distributes supplies of the gaseous fuel, the oxidant gas, and cooling water in a sequence of lamination from a unit cell on one end of the cell laminate to a unit cell on the other end of the c

The present invention provides a polymer electrolyte fuel cell stack that includes an inlet manifold that distributes supplies of the gaseous fuel, the oxidant gas, and cooling water in a sequence of lamination from a unit cell on one end of the cell laminate to a unit cell on the other end of the cell laminate and an outlet manifold that discharges exhausts of the gaseous fuel, the oxidant gas, and the cooling water in an inverted sequence of lamination from the unit cell on the other end of the cell laminate to the unit cell on the one end of the cell laminate. This configuration actualizes a small-sized, compact fuel cell stack.

대표청구항 ▼

[ What is claimed is:] [1.]1. A polymer electrolyte fuel cell stack comprising a cell laminate, said cell laminate comprising a plurality of unit cells that are laid one upon another via conductive separators, each of said unit cells comprising a polymer electrolyte membrane, a pair of electrodes th

[ What is claimed is:] [1.]1. A polymer electrolyte fuel cell stack comprising a cell laminate, said cell laminate comprising a plurality of unit cells that are laid one upon another via conductive separators, each of said unit cells comprising a polymer electrolyte membrane, a pair of electrodes that are arranged across said polymer electrolyte membrane and respectively have a catalytic reaction layer, and a unit for feeding a supply of gaseous fuel containing gaseous hydrogen to one of said electrodes and for feeding a supply of oxidant gas containing oxygen to the other of said electrodes,wherein said polymer electrolyte fuel cell stack further comprises:an inlet manifold that distributes supplies of the gaseous fuel, the oxidant gas, and cooling water through the cell laminate in a first direction from a unit cell on one end of said cell laminate to a unit cell on the other end of said cell laminate; andan outlet manifold that discharges exhausts of the gaseous fuel, the oxidant gas, and the cooling water through the cell laminate in a direction opposite to the first direction from the unit cell on the other end of said cell laminate to the unit cell on the one end of said cell laminate.