采用水热离了交换法制各钛酸锂纳米棒,用热重法(TG)分析钛酸锂在热处理过程中的重量损失,用X射线衍射仪(XRD)和透射电子显微镜(TEM)测试水热反应温度(150和180℃)和高温热处理(600、750和900℃)对钛酸锂结构的影响,用恒流充放电法和循环伏安法对钛酸锂进行电化学性能评价.结果表明,P25与NaOH在180℃水热反应并经过H+与Li+交换,热处理后可以得到纳米棒状钛酸锂,热处理温度为750℃时,初始放电比容量为164mAh/g,在电压为1.5V左右有明显的充放电电压平台,50次充放电循环后比容量保持率达9833%,表现出良好的电化学性能.
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