Understanding Cycling Stability of Redox Active Electrolytes in Aqueous Redox Flow Batteries

Aqueous Organic redox flow batteries (AORFBs) have been considered a promising battery technology for scalable, long-duration energy storage. The presentation first highlights our research progress in developing viologen based AORFBs in the last 10 years. Then mechanistic studies regarding the cycling stability and crossover issues of viologen, ferrocene, ferrocyanide, and TEMPO based electrolytes will be discussed in detail. This presentation emphasizes data acquisition protocols and systematic spectroscopic studies for the energy storage performance of redox-active electrolytes in both half and full-flow batteries.