A novel coronene//Na2Ti3O7 dual-ion battery

We report a new sodium dual ion battery (Na-DIB) with conventional alkyl carbonate electrolyte by using graphene coated Na2Ti3O7 as the anode and coronene, a polycyclic aromatic hydrocarbon, as the cathode. Benefiting from the novel nano-structural features and intercalation mechanisms, the Na-DIB demonstrates high energy density and long cycling life.210