Redox-Active Organic Compounds for Future Sustainable Energy Storage System

Utilizing redox-active organic compounds for future energy storage system (ESS) has attracted great attention owing to potential cost efficiency and environmental sustainability. Beyond enriching the pool of organic electrode materials with molecular tailoring, recent scientific efforts demonstrate the innovations in various cell chemistries and configurations. Herein, recent major strategies to build better organic batteries, are highlighted: diversifying charge-carrying ions, modifying electrolytes, and utilizing liquid-type organic electrodes. Each approach is summarized along with their advantages over Li-ion batteries (LIBs). An outlook is also provided on the practical realization of organic battery systems, which hints at possible solutions for future sustainable ESSs.