Chloride‐Free Electrolytes for High‐Voltage Magnesium Metal Batteries: Challenges, Strategies, and Perspectives.

The demand for high‐energy‐density and safe energy storage devices has spurred increasing interest in high‐voltage rechargeable magnesium batteries (RMB). As electrolytes are the bridge connecting the cathode and anode materials, the development of high‐voltage electrolytes is the key factor in realizing high‐voltage RMBs. This concept presents an overview of three chloride‐free electrolyte systems with wide electrochemical windows, together with the degradation mechanisms and modification strategies at the anode/electrolyte interphase. Finally, future directions in stabilizing Mg anodes and realizing high‐voltage RMBs are highlighted. [ABSTRACT FROM AUTHOR]