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Preparation and electrochemical properties of Li1+xV3O8-yFy synthesized by solid state reaction method at moderate-heating temperature
Received date: 2010-04-02
Revised date: 2010-10-25
Online published: 2011-07-15
F--doped lithium vanadium oxides Li1+xV3O8-yFy was synthesized by a solid state reaction at moderate-heating temperature with Li2CO3 and V2O5 as raw materials. Crystal structures were characterized by XRD and electrochemical properties were studied by charge-discharge performance test, cyclic voltammetry test, and conductance test. The XRD results indicate that the products are pure without any impurities. Li1+xV3O8-yFy (y=0.1) shows the best electrochemical cyclability. The first discharge specific capacity is 252.08mAh/g, and the attractive specific capacity of 210.93 mAh/g is obtained after 25 cycles at 0.2c.
QIN Hong-Lian , TANG Zhi-Yuan , MA Li . Preparation and electrochemical properties of Li1+xV3O8-yFy synthesized by solid state reaction method at moderate-heating temperature[J]. Journal of University of Chinese Academy of Sciences, 2011 , 28(4) : 457 -461 . DOI: 10.7523/j.issn.2095-6134.2011.4.005
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