High lithium electroactivity of nanometer-sized rutile TiO2

被引:784
作者
Hu, Yong-Sheng [1 ]
Kienle, Lorenz [1 ]
Guo, Yu- Guo [1 ]
Maier, Joachim [1 ]
机构
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
关键词
D O I
10.1002/adma.200502723
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nanometer-sized rutile shows much higher electroactivity towards Li insertion than micrometer-sized rutile. Up to 0.8 mol of Li per mole of TiO2 can be inserted into nanometer-sized rutile at room temperature (see figure), which is able to reversibly accommodate Li up to Li0.5TiO2 with excellent capacity retention and high rate capability on cycling, rendering it a promising anode material for high-power lithium-ion batteries.
引用
收藏
页码:1421 / +
页数:7
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