A mini review on alloy-based anode materials for Mg-ion batteries

Abstract

There is a growing call for secondary batteries in superior-performance energy storage devices. The existing ruling Li-ion batteries are restricted by cost, accessibility of resources, and their theoretical capacities. So, scientists have explored substituted batteries. Rechargeable Mg-ion batteries are fascinating of the substitute metal-ion batteries owing to the Mg-ion obtainability in the soil, low price, protection, more volumetric energy density, and environment-friendliness. Mg-metal anodes function in the electrolytes reversibly, but these electrolytes are not suitable for superior capacity-producing transition metal cathodes owing to complicated surface spectacles. Conversely, transition metal oxides work well in the presence of conventional electrolytes, but these conventional electrolytes are not suitable for Mg metal anodes because of passivation spectacles that entirely block them. Alternative anodes that are replaced with Mg metal work reversibly in conventional electrolytes are the hopeful way to produce superior capacity and voltage Mg batteries. The current advancement in alloy-founded elements is discussed in this review. The various approaches, attainable capacities, reaction mechanisms, and electrochemical properties of ally-sort electrodes are scientifically discussed.