Chloride‐Free Electrolytes for High‐Voltage Magnesium Metal Batteries: Challenges, Strategies, and Perspectives
Wanyu Zhao, Yuan Liu, Xiaoli Zhao, Zhenghui Pan, Jianping Chen, Songhe Zheng, Lingli Qu, Xiaowei Yang
Abstract
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.
Topics & Concepts
ElectrolyteAnodeCathodeMaterials scienceHigh voltageMagnesiumElectrochemistryVoltageEnergy storageElectrical engineeringChemistryMetallurgyEngineeringElectrodePhysicsQuantum mechanicsPower (physics)Physical chemistryLayered Double Hydroxides Synthesis and ApplicationsAdvanced Battery Materials and TechnologiesInorganic Chemistry and Materials