Abstract
Here, we are the first to report a spinel type Mn3O4 as cathode material for Mg-ion battery (MIB) with graphite
foil (Gif) as current collector. High Coulombic efficiency and good cyclic stability of Mn3O4 are demonstrated, and the process is
enhanced by using Mn3O4 nanoparticles with a sponge-like morphology. The powder exhibits a network of interconnected
mesopores with well-dispersed nanoparticles (∼10 nm) and large specific surface area (102 m2 g−1
). This structural configuration
provides easy access for electrolyte penetration which markedly enhances the utilization of electroactive material, generates high
ion flux across the electrode−electrolyte interface and provides more active sites for electrochemical reactions to occur. This
study can possibly open the way for exploring other similar compounds with a spinel type structure for MIB.
foil (Gif) as current collector. High Coulombic efficiency and good cyclic stability of Mn3O4 are demonstrated, and the process is
enhanced by using Mn3O4 nanoparticles with a sponge-like morphology. The powder exhibits a network of interconnected
mesopores with well-dispersed nanoparticles (∼10 nm) and large specific surface area (102 m2 g−1
). This structural configuration
provides easy access for electrolyte penetration which markedly enhances the utilization of electroactive material, generates high
ion flux across the electrode−electrolyte interface and provides more active sites for electrochemical reactions to occur. This
study can possibly open the way for exploring other similar compounds with a spinel type structure for MIB.