TEMPO allegro: liquid catholyte redoxmers for nonaqueous redox flow batteries

Abstract

A series of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-based high potential liquid redoxmers were developed by incorporating polyethylene glycol (PEG) chains. By using a hybrid flow cell, TEMPO-EG1 demonstrated excellent cyclability at various concentrations.