New synthesis method of a Si nanocomposite anode for Li-ion batteries

被引：17

作者：

Lacroix-Orio, Laurence ^{[1
]}

Tillard, Monique ^{[1
]}

Zitoun, David ^{[1
]}

Belin, Claude ^{[1
]}

机构：

[1] Univ Montpellier 2, Inst Charles Gerhardt, UMR 5253, CNRS UM2,CC015, F-34095 Montpellier 5, France

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 04期

基金：

英国医学研究理事会;

关键词：

D O I：

10.1021/cm7029823

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：

A new synthesis methodology for the design of silver and silicon nanocrytstalline composite electrode materials for lithium ion batteries has been demonstrated. The process started with the high temperature synthesis of the Zintl compound Li13Ag5Si6, followed by thermal decomposition under high vacuum to extract the whole lithium content. Thermal decomposition resulted in an optimal dispersion of silver nanocrystals inside a crystallized silicon matrix. Both Li13Ag5Si 6 and the nanocomposite material were evaluated as anode for Li-ion batteries. The specific capacity of the composite electrode, Ag0.83Si was found to be twice that of Li13Ag5Si6.

引用

页码：1212 / 1214

页数：3

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