Electrode performance of vanadium pentoxide xerogel prepared by microwave irradiation as an active cathode material for rechargeable magnesium batteries

Abstract

Vanadium pentoxide xerogel was prepared by irradiation with microwaves and successfully applied as the active cathode material of a magnesium rechargeable battery. The structure and electrochemical properties of the V 2O 5 xerogel were investigated and compared with V 2O 5 prepared by conventional heat-treatment. X-ray diffraction revealed that the V 2O 5 xerogel prepared by MW irradiation has low crystalline structure. Charge-discharge tests revealed a specific capacity of 463mAhg -1, which was much larger than OfV 2O 5 prepared by conventional heattreatment (190mAhg -1). © The Electrochemical Society of Japan All rights reserved.