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In situ 119Sn Mössbauer spectroscopy used to study lithium insertion in c-Mg2Sn |
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| Authors: | L Aldon C M Ionica P E Lippens D Larcher J-M Tarascon J Olivier-Fourcade J-C Jumas |
| Institution: | (1) Laboratoire des Agrégats Moléculaires et Matériaux Inorganiques (UMR 5072 CNRS), Université Montpellier II, CC 15, Place E. Bataillon, 34095 Montpellier Cedex 5, France;(2) Laboratoire de Réactivité et Chimie des Solides (UMR 6007 CNRS), Université de Picardie Jules Vernes, 33 Rue St Leu, 80039 Amiens Cedex, France |
| Abstract: | The electrochemical reactions of Li with c-Mg2Sn have been investigated by in situ Mössbauer spectroscopy of 119Sn and X-ray diffraction. The lithiation transforms initially c-Mg2Sn part into Li x Mg2Sn alloy (x?2MgSn ternary alloy. In situ Mössbauer spectroscopy provides valuable information on local environment of tin and swelling behavior and cracking of the particles during discharge and charge processes. |
| Keywords: | in situ measurements lithium-ion batteries electrochemical behavior M?ssbauer spectroscopy of 119Sn |
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