Electrolyte Additives in Zinc‐Based Flow Batteries: From Molecular Mechanisms to Interfacial Control

Zinc‐based aqueous redox flow batteries (RFBs) are emerging as promising next‐generation energy storage devices based on the high theoretical capacity, abundance, and low cost of zinc. However, the universal application of zinc‐based aqueous RFBs is impeded due to the dendrite formation and corrosion of zinc anodes. Here, a comprehensive overview of dendrite‐suppressing strategies based on electrolyte additives is provided, systematically classified into organic and inorganic types. Particular attention is given to the working mechanisms of these additives in electrolytes to clearly define the role and basic principles. In addition, the electrochemical characteristics of strategies using various additives are compared in electrolytes and the remaining challenges facing zinc‐based aqueous RFBs in the future.