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|Title:||Microemulsion Syntheses of Sn and SnO 2-Graphite Nanocomposite Anodes for Li-Ion Batteries||Authors:||Wang, Y.
|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. https://doi.org/10.1149/1.1647571||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||URI:||http://scholarbank.nus.edu.sg/handle/10635/89408||ISSN:||00134651||DOI:||10.1149/1.1647571|
|Appears in Collections:||Staff Publications|
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