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

页码：6893 / 6896

页数：4

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