Electrolyte engineering strategies for regulation of the Zn metal anode in aqueous Zn?ion batteries

Rechargeable aqueous zinc-ion batteries (AZBs), with their high theoretical capacity, low cost, safety, and environmental friendliness, have risen as a promising candidate for next-generation energy storage. Despite the fruitful progress in cathode material research, electrochemical performance of AZB remains hindered by physical chemical instability Zn anode. The anode suffers from dendrite growth reactions electrolyte, leading to efficiency decay capacity loss. Recently, significant effort has been dedicated regulating Electrolyte manipulation, including tailoring salt, additives, or concentration, is useful strategy electrolyte strongly influences anode's failure processes. It thus worthwhile gain an in-depth understanding these electrolyte-dependent regulation mechanisms. With this mind, review first outlines two main issues behind failure, growth, side reactions. Subsequently, strategy, namely, influence additive, concentration on anode, provided. We conclude summarizing future prospects metal potential electrolyte-based solutions.