| 초록 |
Vanadium redox flow battery (VRFB) is one kind of ESS, which converts electricity to chemical energy by redox reaction in each electrolyte tank. For the operation of VRFB, ion exchange membrane plays important role such as providing ion transfer channel for charge carriers, and preventing electrolyte of each electrode from cross-mixing. In this study, the anion exchange membrane is synthesized from poly(arylene ether ketone) with 1-(3-aminopropyl) imidazole as pendant groups for vanadium redox flow battery application. Reduced vanadium ion permeability and high chemical stability is expected because N-heterocyclic structure in functional group can repulse vanadium ion. All of the synthesized membranes show significantly low vanadium ion permeability compared to Nafion® 117 membranes, and VRFB fabricated with synthesized membrane maintained efficiency without any degradation. |
