Operando study of bromine/polybromide microdroplets chemistry on carbon electrode for high performance Zinc Bromine flow batteries (2025)
Abstract
Zinc Bromine flow batteries (ZBFBs) have emerged as one of the promising energy storage technologies because of cost benefit and high safety. One of key issues is that the positive side products, Br2, can cause severe self-discharge and form the polybromide resulting in shuttle effect. The performance of bromine conversion hosts is substantially hampered by sluggish redox reactions. This project aims to reveal the mechanism of the bromine/polybromide microdroplets formation chemistry by monitoring electrochemical reaction on carbon electrode. The operando study will help us understand the mechanism and guide us to discover new functional materials for Zn-Br2 batteries.
