Electrochemical lithium storage of TiO2 hollow microspheres assembled by nanotubes

被引：49
作者：
Chen, Jizhang [1 ]
Yang, Li [1 ]
Tang, Yufeng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 19期
基金：
国家高技术研究发展计划(863计划);
关键词：
Hollow microsphere; Nanotube; Lithium-ion battery; TiO2; Anatase; ANATASE; ANODE; PERFORMANCE; FABRICATION;
D O I：
10.1016/j.jpowsour.2010.04.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
TiO2 hollow microspheres with the shell consisting of nanotubes have been successfully synthesized via a template-free hydrothermal process and subsequent treatments. The electrochemical properties of the anatase sample have been investigated by cyclic voltammetry and galvanostatic method. The initial Li insertion/extraction capacity at a current density of 0.2C reach 290 and 232 mAh g(-1) respectively. Moreover, as-prepared TiO2 delivers a reversible capacity of ca. 150 mAh g(-1) after 500 cycles at 1 C, and it also shows superior high rate performance (e.g., 90 mAh g(-1) at 8 C) without any modification. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：6893 / 6896
页数：4
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