Lithium insertion-deinsertion mechanism in NbSn2 anode studied by 119Sn Mossbauer spectroscopy

被引：6

作者：

Naille, S. ^{[1
]}

Mouyane, M. ^{[1
]}

El Amraoui, M. ^{[1
]}

Lippens, P. -E. ^{[1
]}

Jumas, J. -C. ^{[1
]}

Olivier-Fourcade, J. ^{[1
]}

机构：

[1] Univ Montpellier 2, CNRS UMII ENSCM UMI, Inst Charles Gerhardt, Equipe AIME,UMR 5253, F-34095 Montpellier 5, France

来源：

HYPERFINE INTERACTIONS | 2008年 / 187卷 / 1-3期

关键词：

NbSn(2); Lithium-ion batteries; Negative electrode; 119Sn Mossbauer spectroscopy;

D O I：

10.1007/s10751-008-9867-6

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：

This article deals with the study of the electrochemical performances and the lithium insertion-deinsertion mechanism by mean of 119Sn Mossbauer spectroscopy of NbSn(2). The first discharge shows a plateau at 0.05 V vs. Li+/Li0 corresponding to a displacement reaction with the formation of Li(7)Sn(2). A specific capacity of 487 mAh/g can be reached during this first discharge.

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页码：19 / 26

页数：8

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