Sn-based intermetallic materials performances and mechanisms

被引：44

作者：

Naille, S. ^{[1
]}

Ionica-Bousquet, C. M. ^{[1
]}

Robert, F. ^{[1
]}

Morato, F. ^{[1
]}

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

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

机构：

[1] Univ Montpellier 2, CNRS, UMR 5072, Lab Agregats Mol & Mat Inorgan, F-34095 Montpellier 5, France

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

关键词：

Sn-based intermetallic compounds; lithium-ion batteries; Sn-119 Mossbauer spectroscopy;

D O I：

10.1016/j.jpowsour.2007.06.040

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：

Ni3Sn4 and CoSn2 which are two Sn-based intermetallic compounds with different crystal structures have been tested as future negative electrodes for lithium-ion batteries. Various two-step reactions occur during the first discharge of these two electrodes. The first discharge shows good specific capacities: 515 mAh g(-1) for the Ni3Sn4 electrode and 606 mAh g(-1) for the CoSn2 electrode. These reactions lead to the formation of Li7Sn2, a Li-rich LixSn alloy characterized by Sn-119 Mossbauer spectroscopy. (c) 2007 Elsevier B.V. All rights reserved.

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页码：1091 / 1094

页数：4

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