In situ AFM measurements of the expansion and contraction of amorphous Sn-Co-C films reacting with lithium

被引：46

作者：

Lewis, R. B. ^{[1
]}

Timmons, A.

Mar, R. E.

Dahn, J. R.

机构：

[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada

[2] Dalhousie Univ, Inst Mat Res, Halifax, NS B3H 3J5, Canada

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2007年 / 154卷 / 03期

关键词：

D O I：

10.1149/1.2429042

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In situ atomic force microscopy measurements of patterned amorphous Sn-Co-C sputtered films reacting with Li in an electrochemical cell have been made. Prismatic-shaped patches of Sn0.34Co0.19C0.47 were found to undergo reversible volume expansion of 175 +/- 5% [(V-final - V-initial)/V-initial] without fracture. The a-Sn0.34Co0.19C0.47 was found to have a reversible specific capacity of 700 +/- 10 mAh/g when cycled vs a Li metal negative electrode. (c) 2007 The Electrochemical Society.

引用

页码：A213 / A216

页数：4

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