Chelation-Driven Electrolyte Design for Enhanced Interface and Electrochemical Window in Aqueous Aluminum Batteries.

Aqueous aluminum-ion batteries have garnered significant attention owing to the abundance of aluminum resources, high theoretical specific capacity, and excellent safety. However, challenges such as electrolyte-induced water decomposition, aluminum anode corrosion, and electrode material compatibility continue to constrain their performance. In this study, we restructured the solvation environment using the chelating reagent Bis(2-methoxyethyl)amine (BMEA), achieving an expanded electrochemical window of 2.