【作者】 穆雪梅； 唐致远； 阳晓霞； 于非；

【Author】 Tang Zhi-yuan,Mu Xue-mei,Yang Xiao-xia (School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)

【机构】 天津大学化工学院应用化学系； 迈科科技有限公司；

【摘要】 以不同的钛源(锐钛矿型TiO2、金红石型TiO2、无定形TiO2)和不同的锂源(Li2CO3、 LiOH·H2O),采用高温固相合成法,在不同的温度下合成Li4Ti5O12,研究了Li4Ti5O12的合成工艺条件。经充放电测试、XRD等测试手段发现,在900℃下以锐钛矿型TiO2阳Li2CO3为原料合成的Li4Ti5O12具有良好的电化学性能,其首次放电容量甚至能超过理论容量,循环性能良好,电压平台平稳。更多还原

【Abstract】 The characterization and synthesis of Li4Ti5O12 was studied in the experiment. Li4Ti5O12 was prepared by solid-state method with different sources of titanium(anatase, rutile, amorphous) and lithium(Li2CO3,LiOH·H2O)at different temperatures, so the conditions of experiment was researched . According to tests such as charge/discharge test and XRD, it turned out that Li4Ti5O12 synthesized with anatase and Li2CO3 at 900℃ had better performance of lithium insertion, excellent cyclicity, stable voltage, and higher first discharge capacity.更多还原