Three-dimensional porous Sn-Cu alloy anode for lithium-ion batteries

被引：126
|
作者：
Xue, Leigang [1 ]
Fu, Zhenghao [1 ]
Yao, Yu [1 ]
Huang, Tao [1 ]
Yu, Aishui [1 ]
机构：
[1] Fudan Univ, Inst New Energy, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200438, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2010年 / 55卷 / 24期
关键词：
Anode; Electroless tin plating; Copper foam; Cycleability; Lithium-ion battery; HIGH-CAPACITY ANODE; THIN-FILM; X-RAY; ELECTRODES; ETA'-CU6SN5; CU6SN5; LI; LITHIATION; SYSTEM;
D O I：
10.1016/j.electacta.2010.07.015
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A binder-free three-dimensional (3D) porous Cu6Sn5 anode was prepared for lithium-ion batteries. In this novel approach, tin was deposited by electroless-plating on copper foam which was served as anode current collector as well as the source of copper for Cu6Sn5 alloy formation With optimized post-treatment condition. Cu6Sn5 alloy with thickness of 1 2 mu m was formed on the surface of copper foam network 3D porous Sn-Cu6Sn5 and Cu3Sn-Cu10Sn3-Cu6Sn5 composite anodes were also prepared for comparison Electrochemical tests showed that 3D porous Cu6Sn5 anode exhibits the best electrochemical performance in terms of specific capacitance and cycleability, which delivers a rechargeable capacity of 404 mAh g(-1) over 100 cycles (C) 2010 Elsevier Ltd All rights reserved
引用
收藏
页码：7310 / 7314
页数：5
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