Ultrafine β-AgVO3 nanoribbons derived from α-AgVO3 nanorods by water evaporation method and its application for lithium ion batteries

Abstract

Monoclinic β-AgVO₃ nanoribbons with thickness of 10–20 nm, width of 80–100 nm and length of several hundred micrometers have been successfully prepared by a water evaporation method at 100 °C for 6 h without using any template and organic surfactant. A possible evolution mechanism from α-AgVO₃ nanorods to β-AgVO₃ nanoribbons is proposed. The AgVO₃ nanostructures are demonstrated as promising cathode materials in lithium ion batteries. The as-prepared β-AgVO₃ nanoribbons show improved electrochemical performance in comparison with α-AgVO₃ nanorods due to the ultrafine morphology and thermodynamic stable crystal structure yielding a discharge capacity of 355 mA h g⁻¹ at a current density of 30 mA g⁻¹. It can still remain 32% of its initial discharge capacity after 20 cycles.