Mesoporous organo-silica nanoarray for energy storage media

被引:18
作者
Park, M. S. [1 ]
Wang, G. X.
Kang, Y. M.
Kim, S. Y.
Liu, H. K.
Dou, S. X.
机构
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia
[2] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Wollongong, NSW 2522, Australia
[3] Samsung SDI Co Ltd, Energy Lab, Yongin, Gyeonggi Si, South Korea
[4] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
基金
澳大利亚研究理事会;
关键词
anode; composite; lithium ion battery; mesoporous organo silica; tin oxide;
D O I
10.1016/j.elecom.2006.08.031
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A SnO2-mesoporous organo-silica nanoarray (MOSN) composite was prepared by surfactant mediated synthesis combined with a sol-gel vacuum suction method in which SnO2 has been successfully incorporated inside the periodic nanoholes in the MOSN or coated on its surface. The MOSN with a high aspect ratio of length to width could not only maintain its structure but also effectively accommodate the volume expansion of the SnO2 during electrochemical reactions with Li+. The SnO2-MOSN composite showed a higher reversible capacity of 420 mA h g(-1) with greatly improved capacity retention and lower initial irreversible capacity compared to SnO2 powder. This interesting anodic performance of SnO2-MOSN composite supports the potential use of MOSN for lithium ion batteries. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:71 / 75
页数:5
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