Anode properties of amorphous 50SiO•50SnO powders synthesized by mechanical milling

被引：69

作者：

Morimoto, H ^{[1
]}

Tatsumisago, M ^{[1
]}

Minami, T ^{[1
]}

机构：

[1] Univ Osaka Prefecture, Grad Sch Engn, Dept Appl Mat Sci, Osaka 5998531, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2001年 / 4卷 / 02期

关键词：

D O I：

10.1149/1.1339239

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Amorphous 50SiO . 50SnO (mol %) powders were synthesized by mechanical milling treatment of starting materials SiO and SnO in a dry N-2 atmosphere at room temperature. The resultant powders were used in a rechargeable cell, Li/1 M LiPF6, ethylene carbonate+diethylene carbonate/50SiO . 50SnO. For the first discharge at a current density of 1.5 mA cm(-2), the high capacity over 800 mAh g(-1) was obtained for the potential range of 0 to 2.0 V vs. Li/Li+. This first discharge capacity of amorphous 50SiO . 50SnO powders was much larger than that of amorphous materials in the system SnO-B2O3-P2O5 obtained by mechanical milling reported previously. In addition, irreversible capacity of the former was smaller than that of the latter. The amorphous 50SiO . 50SnO powders synthesized by mechanical milling treatments are one of the promising candidates as anode materials for lithium-ion secondary batteries. (C) 2001 The Electrochemical Society.

引用

页码：A16 / A18

页数：3

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