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Title: Microemulsion Syntheses of Sn and SnO 2-Graphite Nanocomposite Anodes for Li-Ion Batteries
Authors: Wang, Y. 
Lee, J.Y. 
Chen, B.-H. 
Issue Date: 2004
Citation: Wang, Y., Lee, J.Y., Chen, B.-H. (2004). Microemulsion Syntheses of Sn and SnO 2-Graphite Nanocomposite Anodes for Li-Ion Batteries. Journal of the Electrochemical Society 151 (4) : A563-A570. ScholarBank@NUS Repository.
Abstract: Nanostructured SnO 2, SnO 2-graphite, and Sn-graphite composites were prepared by microemulsion techniques using Tergitol 15-S-5 as the surfactant. The particle size of the pristine SnO 2 nanoparticles was typically between 12 and 14 nm. For the composites, Sn and SnO 2 nanoparticles 7-10 nm in size with narrow size distribution were uniformly dispersed on graphite, indicating the positive effect of graphite in maintaining smaller particle size. These Sn-based nanocomposites are multiple Li host systems with good cycling performance in Li-ion battery applications. The improved cyclability is perceived to be a combination of the use of well dispersed Sn or SnO 2 nanoparticles resistant to particle agglomeration, and the presence of a soft graphite matrix to buffer the volume changes in the Li-Sn reactions. In addition, the Sn-graphite nanocomposites exhibited a SnO-shell-Sn-core structure and slightly lower first cycle capacity losses. © 2004 The Electrochemical Society.
Source Title: Journal of the Electrochemical Society
ISSN: 00134651
DOI: 10.1149/1.1647571
Appears in Collections:Staff Publications

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