Recent advances on electrode/electrolyte interfacial modulation in rechargeable magnesium batteries
The high natural abundance of magnesium resources in China;and the demand for high energy density and safe energy storage devices have stimulated research interest in rechargeable magnesium batteries(RMB).However;during the charge-discharge cycle;the formation of passivation layer;the uneven deposition on the magnesium metal anode surface;and the poor compatibility of magnesium metal with conventional electrolytes seriously affect the performance of RMB.The stability of the Mg anode-electrolyte interphase largely determines the cycle stability and Coulombic efficiency of the battery.This review outlines the research progress on the interfacial failure mechanism of RMB in recent years;and summarizes the strategies for constructing electrode/electrolyte interphase that is highly conductive to ions but electrically insulating.Finally;the future development direction of stabilizing magnesium anodes for realizing high-performance magnesium secondary batteries is envisioned.
magnesium metal batteriesMg anodeelectrolytespassive layersolid electrolyte interphase
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