The magnesium-air battery has garnered significant attention due to its high energy density and envi-ronmental friendliness.However,the magnesium anode/electrolyte interface suffers from irreversible electroly-sis-deposition,anode self-corrosion,and hydrogen evolution issues,which severely impact the battery's stabili-ty,safety,lifespan,and power density.Electrolyte modulation is a crucial approach to enhancing the properties of the anode/electrolyte interface and consequently improving the overall performance of magnesium-air batter-ies.This article provides an overview of recent research and developments in electrolyte additives and novel elec-trolytes for magnesium-air batteries.Electrolyte additives can be categorized into three major classes:inorganic,organic,and composite.They have the potential to suppress anode corrosion,enhance ionic conductivity,and improve anode efficiency.Novel electrolytes primarily encompass new aqueous electrolytes and gel-based elec-trolytes.The former can mitigate detrimental side reactions,such as hydrogen evolution,while the latter can prevent electrolyte leakage and offer high ionic conductivity with low leakage current.The development of more novel electrolyte additives and innovative electrolytes holds promise for enhancing the performance and stability of magnesium-air batteries in the future.
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