Aqueous supercapacitors of high energy density based on MoO3 nanoplates as anode material

Abstract

MoO₃ nanoplates were prepared as anode material for aqueous supercapacitors. They can deliver a high energy density of 45 W h kg⁻¹ at 450 W kg⁻¹ and even maintain 29 W h kg⁻¹ at 2 kW kg⁻¹ in 0.5 M Li₂SO₄ aqueous electrolyte. These results present a new direction to explore non-carbon anode materials.