Patent ID: 9368818
Filing Date: 2016-06-14
CPC Classification: H01M,Y02E

Claim Text:
1. A humidification control method for a fuel cell formed by stacking an electrolyte electrode assembly and a separator, the electrolyte electrode assembly includes an anode, a cathode, and an electrolyte interposed between the anode and the cathode, the method comprising the steps of: detecting only a direct current resistance component by measuring an impedance within an area of an electrode reaction surface during power generation of the fuel cell; calculating a reaction resistance component based on the detected direct current resistance component and a stack voltage; detecting a humidified state of the fuel cell based on the detected direct current resistance component and the calculated reaction resistance component; and adjusting a quantity of humidification of a reaction gas supplied to the fuel cell based on the detected humidified state of the fuel cell.