Patent ID: 9166239
Filing Date: 2015-10-20
Classification: H01M,Y02E

Abstract:
1. A method for controlling gas flow rates in a fuel cell device, the fuel cell device comprising a fuel cell stack configured from a plurality of membrane electrode assemblies, each of which is formed by arranging an anode electrode and a cathode electrode having a gas channel with an electrolyte membrane sandwiched in-between, an outlet of the anode electrode and an ejector provided in an anode inlet channel are connected by an anode outlet channel, so that the hydrogen ejected from the anode electrode without being used is supplied again from the ejector to the anode electrode, the method comprising: adjusting a supply flow rate of a fuel gas to the anode electrode; adjusting a supply flow rate of an oxidant gas to the cathode electrode; adjusting a supply current from the fuel cell stack to an electric load connected to the fuel cell stack; performing a start-up control of the fuel cell stack, the start-up control comprising: performing a normal electric distribution control, after completion of the start-up control, for controlling the supply flow rate of the fuel gas to the anode electrode and the supply flow rate of the oxidant gas to the cathode electrode, so that a required target current is supplied from the fuel cell stack to the electric load.