Hydrothermal synthesis of MnV2O6 nanobelts and its application in lithium-ion battery

• MnV2O6 nanobelts have been prepared by a facile hydrothermal method.
• The formation mechanism and morphology evolvement were studied.
• MnV2O6 nanobelts exhibited better discharge capacity and cyclability.

Manganese vanadate (MnV2O6) nanobelts with widths of 200–300 nm, thicknesses of 70–90 nm, and lengths up to several micrometers have been successfully synthesized by a simple and facile hydrothermal method without using any surfactants or additives. A phase-transformation promoted splitting mechanism was proposed to understand the formation of the belt-like nanostructures based on the time-dependent experiments. The electrochemical performance of the as-synthesized MnV2O6 nanobelts as anode materials for lithium-ion batteries was investigated by a galvanostatic charge–discharge method. The results showed that the as-synthesized MnV2O6 nanobelts exhibited high capacity and excellent cycle stability, and are thus promising anode candidates in advanced rechargeable lithium-ion batteries.