Science Daily   September 6, 2023 Lithium-based nonaqueous redox flow batteries (LRFBs) are alternative systems to conventional aqueous redox flow batteries because of their higher operating voltage and theoretical energy density. However, the use of ion-selective membranes limits the large-scale applicability of LRFBs. Researchers at the University of Cincinnati have developed high-voltage membrane-free LRFBs based on an all-organic biphasic system. Under static conditions, these batteries with 0.5 M redox-active material delivered capacity retentions of 98%, 98%, and 92%, respectively, for 100 cycles over ~55 days at the current density of 1 mA/cm2 and a temperature of 27 °C. The battery delivered an initial average […]