In situ 119Sn Mossbauer spectroscopy used to study lithium insertion in c-Mg2Sn

被引：6
|
作者：
Aldon, L.
Ionica, C. M.
Lippens, P. E.
Larcher, D.
Tarascon, J. -M.
Olivier-Fourcade, J.
Jumas, J. -C.
机构：
[1] Univ Montpellier 2, CNRS, UMR 5072, Lab Agregats Mol & Mat Inorgan, F-34095 Montpellier 5, France
[2] Univ Picardie, CNRS, UMR 6007, Lab React & Chim Solides, F-80039 Amiens, France
来源：
HYPERFINE INTERACTIONS | 2006年 / 167卷 / 1-3期
关键词：
in situ measurements; lithium-ion batteries; electrochemical behavior; Mossbauer spectroscopy of Sn-119;
D O I：
10.1007/s10751-006-9366-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The electrochemical reactions of Li with c-Mg2Sn have been investigated by in situ Mossbauer spectroscopy of Sn-119 and X-ray diffraction. The lithiation transforms initially c-Mg2Sn part into Li (x) Mg2Sn alloy (< 0.5). On further lithiation Mg is extruded from the structure with formation of Li2MgSn ternary alloy. In situ Mossbauer spectroscopy provides valuable information on local environment of tin and swelling behavior and cracking of the particles during discharge and charge processes.
引用
收藏
页码：729 / 732
页数：4
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