FUEL CELL STARTUP APPARATUS AND METHOD

摘要

A fuel cell startup apparatus and method reduces high-voltage generation and corrosion of a cathode electrode that may occur because the density of oxygen is locally high in a cell near a central flow distributor after long-term parking of a fuel-cell vehicle. To this end, density control gas is selectably injected into a fuel supply line prior to supply of reaction gas of hydrogen and air in a fuel cell startup process after long-term parking to forcedly mix anode-side gas in the fuel supply line and the cell with the density control gas.

主权项

1. A fuel cell startup method comprising:
operating, by a controller, a density control gas supply to supply density control gas to an anode of a fuel-cell stack and to forcedly mix anode-side gas in a cell of the fuel-cell stack with the density control gas; and subsequently to supplying the density control gas to the anode, supplying a fuel gas and an oxidation gas to the fuel-cell stack.