Synthesis and electrochemical properties of Li2ZnTi3O8 fibers as an anode material for lithium-ion batteries

被引：82

作者：

Wang, Li ^{[1
]}

Wu, Lijuan ^{[1
]}

Li, Zhaohui ^{[1
]}

Lei, Gangtie ^{[1
]}

Xiao, Qizhen ^{[1
,2
]}

Zhang, Ping ^{[2
]}

机构：

[1] Xiangtan Univ, Coll Chem, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Hunan, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 15期

关键词：

Electrospinning; Fibers; Anode; Lithium-ion batteries; LI-STORAGE;

D O I：

10.1016/j.electacta.2011.03.122

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Li2ZnTi3O8 fibers are synthesized by thermally treating electrospun Zn(CH3COO)(2)/LiOAc/TBT/PVP fibers and utilized as an energy storage material for rechargeable lithium-ion batteries. The material is characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and thermal analysis. Scanning electron microscopy results show that the Li2ZnTi3O8 fibers have an average diameter of 200 nm. Electrochemical properties of the material are evaluated using cyclic voltammetry, galvanostatic cycling and electrochemical impedance spectroscopy. The results show that as-prepared Li2ZnTi3O8 has a high specific discharge capacity of 227.6 mAh g(-1) at the 2nd cycle. Its electrochemical performance at subsequent cycles shows good cycling capacity and rate capability. The obtained results thus strongly support that the electrospinning method is an effective method to prepare Li2ZnTi3O8 anode material with higher capacity and rate capability. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：5343 / 5346

页数：4

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