FUEL CELL SYSTEM

摘要

In order to make a power generation quantity of a cell for fuel cell increase in a short time when a drop in moistness of the cell causes the power generation quantity of the cell to decrease, a cathode of the cell includes a conductive material, catalyst, and ionomer which covers the conductive material and catalyst. If an output voltage value of the cell is lower than a predetermined threshold voltage value and an electrical resistance value of the cell is higher than a predetermined threshold resistance value, control for increasing an oxidizing gas amount which increases an amount of oxidizing gas sent to the cell is performed.

主权项

1. A fuel cell system comprising:
a fuel cell having a membrane electrode assembly provided with an electrolyte and a cathode and anode respectively arranged at two sides of the electrolyte and an oxidizing gas passage configured to feed an oxidizing gas to the cathode, the cathode including a conductive material, catalyst, and ionomer which covers the conductive material and catalyst; an oxidizing gas feed path connected to an inlet of the oxidizing gas passage; an oxidizing gas feeder arranged in the oxidizing gas feed path and configured to feed oxidizing gas to the cathode; and a system controller configured to control the fuel cell system to make an output current value of the fuel cell equal to a target current value which is determined based on a target power generation quantity of the fuel cell, and configured to if an output voltage value of the fuel cell is lower than a predetermined threshold voltage value and an electrical resistance value of the fuel cell is higher than a predetermined threshold resistance value, control the oxidizing gas feeder to perform control for increasing an oxidizing gas amount which increases an amount of oxidizing gas sent to the fuel cell.