In situ<sup>119sup>Sn M枚ssbauer spectroscopy study of Sn-based electrode materials
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- 作者：Abdelmaula Aboulaich ; Florent Robert ; Pierre Emmanuel Lippens ; Laurent Aldon ; Josette Olivier-Fourcade ; Patrick Willmann and Jean-Claude Jumas
- 关键词：Li ; ion batteries ; tin ; based composite materials ; in situ M枚ssbauer spectroscopy
- 刊名：Hyperfine Interactions
- 出版时间：January, 2006
- 出版年：2006
- 期刊代码：18_03043843
- 类别：cp
- 卷：167
- 期：1-3
- 页码：733-738
- 数据来源：sp
摘要
Sn-based composite materials were synthetized by a conventional melt-quenching method, and studied by X-ray diffraction, electrochemistry and in situ 119Sn M枚sssbauer spectroscopy. Tin was dispersed ex situ into a matrix formed from B<sub>2sub>O<sub>3sub>:P<sub>2sub>O<sub>5sub>. XRD and 119Sn M枚ssbauer spectroscopy show the formation of an interface between the active species (Sn0) and the matrix. This amorphous interface acts as a “buffer-zone” which compensates volume changes during the tin–lithium alloy formation and avoids aggregation of tin particles.