Chemical reduction of nano-scale Cu2Sb powders as anode materials for Li-ion batteries

被引：38

作者：

Ren, Jianguo ^{[1
]}

He, Xiangming ^{[1
]}

Pu, Weihua ^{[1
]}

Jiang, Changyin ^{[1
]}

Wan, Chunrong ^{[1
]}

机构：

[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2006年 / 52卷 / 04期

关键词：

Cu2Sb alloy anode; chemical reduction; nano-scale; Li-ion batteries;

D O I：

10.1016/j.electacta.2006.01.084

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel process was attempted to prepare nano-scale Cu2Sb alloy powders as anode materials for Li-jon batteries. The preparation started with chemical reduction Of Cu2Sb in an aqueous solution with sodium citrate as a complexing agent and KBH4 as a reducer. The analysis of scanning electron microscopy and X-ray diffraction showed that as-prepared nano-scale Cu2Sb powders presented tetragonal structure with particle size of 50-70 nm. Cycling between 0 and 1.2 V, the nano-scale Cu2Sb alloy showed good cyclability with a stable specific capacity of 200 mAhg(-1) within 25 cycles. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1538 / 1541

页数：4

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