Effect of Annealing on Electrochemical Performance of Anodized TiO2 Nanotubes for Lithium Ion Batteries

被引：10

作者：

Du, Guodong ^{[1
]}

Wan, Bin ^{[2
]}

Guo, Zaiping ^{[1
,3
]}

Shen, Jianian ^{[4
]}

Li, Ying ^{[4
]}

Liu, Huakun ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

[2] Shanghai Univ Sci Engn, Sch Mat Engn, Shanghai 201620, Peoples R China

[3] Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia

[4] Shanghai Univ, Inst Mat, Shanghai 200072, Peoples R China

来源：

ADVANCED SCIENCE LETTERS | 2011年 / 4卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

TiO2; Nanotube; Anode; Electrochemical Properties; Lithium Ion Batteries; TITANIA NANOTUBES; ARRAYS; FABRICATION; ANODIZATION; ELECTRODE; HYDROGEN; STORAGE; GROWTH; GLASS;

D O I：

10.1166/asl.2011.1237

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The effect of annealing on TiO2 nanotube arrays as anode for lithium ion batteries by X-ray diffraction, field emission scanning electron microscopy, cyclic voltammetry, galvanostatic charge-discharge testing, and electrochemical impedance spectroscopy was investigated. The crystalline structure of TiO2 nanotube can be changed by controlling the annealing temperature and the crystallization also has considerable effect on electrochemical performance. Amorphous TiO2 annealed at 250 degrees C shows the highest discharge capacity in coin cell tests with a discharge capacity of about 67 mu Ah cm(-2) and good cycling stability during 50 charge-discharge cycles. The electrochemical impedance spectroscopy results show the smallest resistance compared to the other samples.

引用

页码：469 / 473

页数：5

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