Monodisperse Sn Nanocrystals as a Platform for the Study of Mechanical Damage during Electrochemical Reactions with Li
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- 作者：Linping Xu ; Chunjoong Kim ; Alpesh K. Shukla ; Angang Dong ; Tracy M. Mattox ; Delia J. Milliron ; Jordi Cabana
- 刊名：Nano Letters
- 出版年：2013
- 出版时间：April 10, 2013
- 年：2013
- 卷：13
- 期：4
- 页码：1800-1805
- 全文大小：406K
- 年卷期：v.13,no.4(April 10, 2013)
- ISSN：1530-6992
文摘
Monodisperse Sn spherical nanocrystals of 10.0 卤 0.2 nm were prepared in dispersible colloidal form. They were used as a model platform to study the impact of size on the accommodation of colossal volume changes during electrochemical lithiation using ex situ transmission electron microscopy (TEM). Significant mechanical damage was observed after full lithiation, indicating that even crystals at these very small dimensions are not sufficient to prevent particle pulverization that compromises electrode durability.