Novel, electrolyte solutions comprising fully inorganic salts with high anodic stability for rechargeable magnesium batteries

Abstract

Herein the first inorganic magnesium salt solution capable of highly reversible magnesium electrodeposition is presented. Synthesized by acid–base reaction of MgCl₂ and Lewis acidic compounds such as AlCl₃, this salt class demonstrates upwards of 99% Coulombic efficiency, deposition overpotential of <200 mV, and anodic stability of 3.1 V.