Nov 12, 2021 · Membrane Based on 2D Nanohybrid Materials can Improve Performance of Vanadium Redox Flow Batteries. Download PDF Copy. Nov 12 2021 Reviewed by Bethan Davies. The vanadium redox flow battery (VRFB) is a potential sustainable energy storage system. The ion-exchange membrane (IEM) used in a VRFB cell avoids a cathode or anode short circuit and