The effect of CoSn/CoSn2 phase ratio on the electrochemical behaviour of Sn40Co40C20 ternary alloy electrodes in lithium cells

被引：65

作者：

Hassoun, J. ^{[1
]}

Ochal, P. ^{[1
]}

Panero, S. ^{[1
]}

Mulas, G. ^{[2
]}

Minella, C. Bonatto ^{[2
]}

Scrosati, B. ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy

[2] Univ Sassari, Dept Chem, I-07100 Sassari, Italy

来源：

JOURNAL OF POWER SOURCES | 2008年 / 180卷 / 01期

关键词：

tin; alloy; ternary; electrode; lithium; battery;

D O I：

10.1016/j.jpowsour.2008.01.059

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：

Samples of a SnCoC-based electrodes, all having the molar composition Sn40Co40C20, but differing by the high energy ball milling synthesis conditions, have been tested in lithium cells. The investigation was carried out by using a series of complementary techniques, including potentiodynamic cycling with galvanostatic acceleration, galvanostatic charge-discharge cycling and impedance spectroscopy. The results confirmed the high capacity delivery of this type of ternary electrodes but also revealed that their electrochemical behaviour is influenced by the relative abundance of the nanosized domains of CoSn and CoSn2 in their structure. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：568 / 575

页数：8

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