Electrochemical behavior of nanostructured LiV3O8 in aqueous LiNO3 solution

Despite the large number of studies on the electrochemical behavior of LiV3O8 as a cathode material in nonaqueous lithium ion batteries, little information is available about the electrochemical behavior of LiV3O8 as an anode material in aqueous rechargeable lithium batteries. In this work, nanostructured LiV3O8 is successfully prepared using a low-temperature solid-state method. The electrochemical properties of the LiV3O8 electrode in 1 M, 5 M, and saturated LiNO3 aqueous electrolytes have been characterized by cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge/discharge experiments. The results show that LiV3O8 electrode in saturated LiNO3 electrolyte exhibits good electrochemical performance in terms of specific capacity and electrochemical cycling performance. LiV3O8 electrode can be reversibly cycled in saturated LiNO3 aqueous electrolyte for 300 cycles at a rate of 0.5 C (300 mA g(-1) is assumed to be 1 C rate) with impressive specific capacities. (C) 2011 Elsevier Ltd. All rights reserved.