RADICAL SCAVENGER, MANUFACTURING METHOD THEREFOR, MEMBRANE-ELECTRODE ASSEMBLY COMPRISING SAME, AND FUEL CELL COMPRISING SAME

摘要

The present invention relates to a radical scavenger, a manufacturing method therefor, a membrane-electrode assembly comprising the same, and a fuel cell comprising the same. The membrane-electrode assembly comprises: an ion exchange membrane; catalyst electrodes disposed on both surfaces of the ion exchange membrane, respectively; and a radical scavenger disposed at any one position selected from the group consisting of in the catalyst electrodes, in the ion exchange membrane, between the ion exchange membrane and the catalyst electrodes, and a combination thereof. The membrane-electrode assembly can improve chemical durability of the ion exchange membrane, minimize the loss of ion conductivity of the ion exchange membrane itself, prevent the chemical deterioration of the ion exchange membrane occurring during long-term operation of the fuel cell, ensure excellent long-term performance, and be used for general purposes regardless of the kind of ion exchange membrane, such as a fluorine-based ion exchange membrane or a hydrocarbon-based ion exchange membrane.