Evaluation of structural and electrochemical properties of the MnSb–Li system as anode for Li-ion batteries期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Evaluation of structural and electrochemical properties of the MnSb–Li system as anode for Li-ion batteries

Authors:	Costana Mihaela Ionica-Bousquet Manfred Womes Pierre-Emmanuel Lippens Josette Olivier-Fourcade Bernard Ducourant Alan V. Chadwick

Affiliation:	(1) LAMMI (CNRS UMR 5072), Université Montpellier II, CC 015, Place E. Bataillon, Montpellier Cedex 5, 34095, France;(2) Functional Materials Group, School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NR, UK

Abstract:	The electrochemical reaction mechanisms between lithium and cystalline MnSb are investigated by X-ray diffraction, ¹²¹Sb Mössbauer spectroscopy, and X-ray absorption spectroscopy (XAS). The analysis of the experimental data at different depths of the electrochemical discharge process reveals a complex reaction mechanism comprising two steps. The main reaction of the first step corresponds to the dispersion of lithium in the MnSb matrix with formation of the intermediate compound LiMnSb. The second step corresponds to a Li–Sb alloying process with formation of Li₃Sb.

Keywords:	intermetallics lithium reaction mechanism ¹²¹Sb M?ssbauer spectroscopy
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