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Electrochemical performance of Sn film reinforced by Cu nanowire
被引:21
作者:
Zhao, Xiuyun
[2
]
Xia, Zhonghong
[3
]
Xia, Dingguo
[1
]
机构:
[1] Peking Univ, Coll Engn, Beijing 100871, Peoples R China
[2] Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
[3] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
关键词:
Sn;
Copper nanowire;
Reinforced;
Film anode;
Electrodeposition;
HIGH-CAPACITY ANODE;
BATTERY ELECTRODE;
ALLOY ELECTRODES;
COMPOSITE ANODE;
TERNARY ALLOY;
LITHIUM;
TIN;
REDUCTION;
NANOCOMPOSITE;
FABRICATION;
D O I:
10.1016/j.electacta.2010.05.056
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
Sn/Cu nanowire composite film was electrodeposited on copper foil substrates and used as an anode material for lithium-ion batteries. The structure of the obtained composite film anode was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrochemical performance was evaluated by cyclic voltammetry, galvanostatic cycling and impedance spectroscopy. It was found that the Sn/Cu nanowire composite film anode showed a better cycle stability than Sn film anode, whereas the Sn/CNT composite film anode indicated poor capacity retention. It could be deduced that copper nanowire reinforced the Sn film anode due to the better wetting property of Sn on the surface of copper and reduced the loss of electric contact among tin particles in the Sn/Cu nanowire composite film anode. (C) 2010 Elsevier Ltd. All rights reserved.
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页码:6004 / 6009
页数:6
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