Electrodeposition and lithium storage performance of three-dimensional porous reticular Sn-Ni alloy electrodes

被引：75

作者：

Huang, Ling ^{[1
]}

Wei, Hong-Bing ^{[1
,2
]}

Ke, Fu-Sheng ^{[1
]}

Fan, Xiao-Yong ^{[1
]}

Li, Jun-Tao ^{[1
]}

Sun, Shi-Gang ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Wujiang Entry Exit Inspect & Quarantine Bur, Lab Battery Prod, Wujiang 215200, Jiangsu, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 10期

关键词：

3D porous Sn-Ni alloy; Electroplating; Lithium ion batteries; TIN;

D O I：

10.1016/j.electacta.2008.11.044

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Three-dimensional (3D) porous materials of Sn-Ni alloy with reticular structure were prepared by electroplating using copper foam as current collector. The structure and electrochemical performance of the electroplated 3D porous Sn-Ni alloys were investigated in detail. Experimental results illustrated that the 3D porous Sn-Ni alloy consists of mainly Ni3Sn4 phase with a hexagonal structure. Galvonostatic charging/discharging of annealed 3D porous Sn-Ni alloy confirmed its excellent performances: at 50th charge-discharge cycle, the discharge specific capacity is 505 mAh g(-1) and the corresponding charge (delithiation) specific capacity is 501 mAh g(-1), yielding columbic efficiency as high as 99%. It has revealed that the porous structure of the alloy can restrain the pulverization of electrode in charge/discharge cycles, and accommodate partly the volume expansion and phase transition, resulting in a significant improvement of cycle life of the Sn-Ni electrode. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2693 / 2698

页数：6

共 14 条

[1] Tin-based composite materials as anode materials for Li-ion batteries [J].