以NH4VO3, Li2CO3为原料, 无水乙醇为介质, 采用一种新的固相法合成了Li1+xV3O8.运用TG/DSC, XRD, SEM等手段进行了表征, 测量了Li1+xV3O8的高温电导率, 求出了电导活化能;并研究了Li1+xV3O8的热稳定性.制备的Li1+xV3O8的形状为棒状和条状, 长端约10 μm, 短端约5 μm.热分析结果表明, 其结构不随温度改变而改变, 直到628 ℃熔化.在500 ℃时, 当电流密度为100 mA·cm-2时, Li1+xV3O8的峰值电压为2.77 V, 终止电压为1.8 V时, 比容量为198 mAh·g-1.室温～550 ℃, Li1+xV3O8的电导率和温度的关系式为lnσ=1.505～2.141×103/T, 说明在该温度区间Li1+xV3O8具有始终如一的电子跃迁机构, 其电导活化能为0.185 eV.
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