| Li1-xNaxV3O8电极在硫酸锂-水-乙醇体系中的电化学性能 |
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| 引用本文： | 袁安保,宋维相.Li1-xNaxV3O8电极在硫酸锂-水-乙醇体系中的电化学性能[J].上海大学学报(英文版),2007,11(4). |
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| 作者姓名： | 袁安保 宋维相 |
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| 作者单位： | Department of Chemistry College of Sciences，Shanghai University，Department of Chemistry，College of Sciences，Shanghai University，Shanghai 200444，P.R.China，Shanghai 200444，P.R.China |
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| 摘 要： | A series of Li_(1-x)Na_xV_3O_8 materials was prepared by solution reaction followed by calcination method and their electrochemical performances in 2 M Li_2SO_4-water-ethanol solution as negative electrodes for aqueous electrolyte lithium ion battery were studied and compared each other.X-ray diffraction analysis revealed that partially substituting sodium for lithium in LiV_3O_8 could increase the interlayer distances of (100) plane.Cyclic voltammetric experiments have demonstrated that the Li~ insertion and extraction kinetics of Li_(0.7)Na_(0.3)V_3O_8 is superior to that of LiV_3O_8.Charge/discharge results showed that the discharge specific capacity of Li_(0.7)Na_(0.3)V_3O_8 electrode is higher than that of LiV_3O_8 electrode.
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Electrochemical performance of Li1-xNaxV3O8 electrodes in lithium sulfate-water-ethanol system |
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| YUAN An-bao,SONG Wei-xiang.Electrochemical performance of Li1-xNaxV3O8 electrodes in lithium sulfate-water-ethanol system[J].Journal of Shanghai University(English Edition),2007,11(4). |
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| Authors: | YUAN An-bao SONG Wei-xiang |
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| Abstract: | A series of Li_(1-x)Na_xV_3O_8 materials was prepared by solution reaction followed by calcination method and their electrochemical performances in 2 M Li_2SO_4-water-ethanol solution as negative electrodes for aqueous electrolyte lithium ion battery were studied and compared each other.X-ray diffraction analysis revealed that partially substituting sodium for lithium in LiV_3O_8 could increase the interlayer distances of (100) plane.Cyclic voltammetric experiments have demonstrated that the Li~ insertion and extraction kinetics of Li_(0.7)Na_(0.3)V_3O_8 is superior to that of LiV_3O_8.Charge/discharge results showed that the discharge specific capacity of Li_(0.7)Na_(0.3)V_3O_8 electrode is higher than that of LiV_3O_8 electrode. |
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| Keywords: | trivanadate sodium substitution electrochemical performance lithium sulfate-water-ethanol |
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