Physical Investigation of the Mechanisms of Lithium Insertion in Sulfides as Anode Materials for Lithium-Ion Batteries

被引：2

作者：

Dedryvere, R. ^{[1
]}

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

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

机构：

[1] Univ Montpellier 2, Lab Agregats Mol & Mat Inorgan LAMMI, CC15, F-34095 Montpellier, France

来源：

IONICS | 2000年 / 6卷 / 5-6期

关键词：

D O I：

10.1007/BF02374159

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrochemical and chemical lithium insertion (via n-butyllithium) were carried out on a family of spinel phases of the Cu2S-In2S3-SnS2 system. Electrochemical measurements have revealed great reversible capacities and the possible use of these materials as negative electrodes in lithium-ion batteries, Sn-119 Mossbauer spectroscopy, Li-7 NMR and S K edge EXAFS spectroscopy were carried out to characterize the mechanisms of lithium insertion. This study has shown the formation of lithium-metal alloys finely dispersed in an amorphous lithium sulfide matrix at low potentials. A model is proposed to explain the great capacities observed in these materials.

引用

页码：397 / 402

页数：6

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