METHOD FOR PRODUCING ION CONDUCTIVITY-IMPARTING AGENT FOR CATALYST ELECTRODE LAYER OF ANION-EXCHANGE MEMBRANE FUEL CELL

Disclosed is a method for producing an ion-conductivity providing agent for a catalyst electrode layer of an anion-exchange membrane type fuel cell comprising: producing anionic conductive resin including a quaternary onium base having a halogeno ion as its counterion, and bringing the halogen type anionic conductive resin into contact with carbonate solution and/or bicarbonate solution to directly obtain anionic conductive resin in which at least a part of the counterion of said quaternary onium base is CO2- and/or HCO- , without ion exchange of the counterion to OH-type by using deleterious substance such as sodium hydroxide. The purpose is to provide a method for stably producing an ion-conductivity providing agent used for giving ion conductivity to a catalyst electrode layer of an anion-exchange membrane type fuel cell, the method being easy to operate, the ion-conductivity providing agent showing constant effect for giving ion conductivity.