| 초록 |
Blend membranes comprising of sulfonated poly(ether ether sulfone) (sPEEK), poly(vinylidene fluoride) (PVdF), and urethane acrylate non-ionomer (UAN) are prepared for vanadium redox flow batteries (VRFBs). The key idea of this work is to combine high proton conducting property of sPEEK and low vanadium permeability of PVdF by introducing the amphiphilic UAN to the immiscible blend of sPEEK and PVdF which makes the two polymers compatible. The blend membranes are characterized by water uptake, dimensional change, proton conductivity, vanadium ion permeability, and cross-sectional morphology. |
