Patent ID: 8383277
Filing Date: 2013-02-26
Classification: H01M,Y02E

Abstract:
1. A concentration distribution estimation device for a fuel cell that has an anode and a cathode on opposite sides of an electrolyte membrane and that generates electric power by being supplied with a fuel gas on the anode and being supplied with air on the cathode, the concentration distribution estimation device estimating a concentration distribution of an impurity substance in a gas channel on an anode side in the fuel cell, comprising: an impurity substance amount estimation device that calculates by estimation an amount of an impurity substance existing in the anode-side gas channel; an impurity substance distribution estimation device that calculates by estimation a distribution of an existence rate of the impurity substance in the anode-side gas channel based on gas pressure in the anode-side gas channel and a flow rate distribution of the fuel gas in the anode-side gas channel; and a concentration distribution calculation device that calculates the concentration distribution of the impurity substance in the anode-side gas channel as a multiplication product of the amount of the impurity substance estimated by the impurity substance amount estimation device and the distribution of the existence rate of the impurity substance estimated by the impurity substance distribution estimation device.