Highly reversible lithium storage in porous SnO2 nanotubes with coaxially grown carbon nanotube overlayers

被引:458
作者
Wang, Y
Zeng, HC
Lee, JY
机构
[1] Natl Univ Singapore, Singapore MIT Alliance, Singapore 117576, Singapore
[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore
关键词
D O I
10.1002/adma.200501883
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The preparation Of SnO2 nanotubes with coaxially grown carbon nanotube overlayers with good conformal control of shape and size is reported. The SnO2-core/carbon-shell nanotubes (see Figure) are excellent reversible lithium-ion storage compounds combining the best features of carbon (for cyclability) and SnO2 (for capacity). These structures deliver high specific capacity (similar to 540-600 mA h g(-1)) and good cyclability (0.0375% capacity loss per cycle).
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页码:645 / +
页数:6
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