Redox flow battery (RFB) stands out as a promising energy storage technology owing to its independent power and energy features, long cycle life, and rapid response. Compared with the aqueous RFBs, the non-aqueous RFBs (NARFBs) have received increasing attention because of their wider electrochemical window and thus higher energy density. However, the cycling performance of NARFBs is still limited by the poor stability of the active materials during charging/discharging and the crossover of the electrolytes. To improve the performance and efficiency, many novel NARFB systems have been developed subsequently. In my group, we designed novel organometallic-based and organic molecule based NARFBs. Molecular modification was used to solve the low solubility, side reactions and irreversible capacity decay of the battery. We also enhanced the performance of the battery with improving the membrane and supporting electrolyte. Recently, a new bi-redox material, 1-(ferrocenylmethyl-amino)-anthraquinone composed of ferrocene and anthraquinone two moieties, is designed for symmetrical NARFB. Meanwhile, we adopted two-dimensional materials modified membranes to impede the crossover of active materials and improve Coulombic efficiency of the NARFBs.

Recent works on non-aqueous redox flow battery

ACS Fall 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.