ION-CONDUCTING POLYMER COMPRISING PHENYL PENDANT SUBSTITUTED WITH TWO OR MORE SULFONATED AROMATIC GROUPS, AND USAGE OF SAME

摘要

The present invention relates to: a polymer comprising a phenyl pendant substituted with two or more sulfonated aromatic groups; a method for manufacturing the polymer; an ion conductive body comprising the polymer; a resin composition body comprising the polymer; an electrolyte membrane made of the resin composition comprising the polymer; a membrane-electrode assembly provided with the electrolyte membrane and a battery provided with same; and a segregation membrane, comprising the ion-conductive polymer, for a redox flow battery and a redox flow battery provided with the segregation membrane. The electrolyte membrane manufactured from ion conductive polymer comprising a phenyl pendant substituted with two or more sulfonated aromatic groups, according to the present invention, can provide superb ion conductivity, mechanical strength and chemical stability. Due to such superb physical characteristics, the polymer membrane can be utilized in a membrane-electrode assembly for a fuel cell, and a redox flow battery provided with the polymer membrane as a segregation membrane exhibits excellent cell performance even when the charging and discharging cycles are repeated tens of times, and can maintain a high rate of preservation of the discharge rate.