TiO2(B)@carbon composite nanowires as anode for lithium ion batteries with enhanced reversible capacity and cyclic performance

Authors

Zunxian Yang, Fuzhou University China
Guodong Du, University of WollongongFollow
Zaiping Guo, University of WollongongFollow
Xuebin YuFollow
Zhixin Chen, University of WollongongFollow
Tailiang Guo, Fuzhou University China
Hua-Kun Liu, University of WollongongFollow

RIS ID

37733

Publication Details

Yang, Z., Du, G., Guo, Z., Yu, X., Chen, Z., Guo, T. & Liu, H. K. (2011). TiO2(B)@carbon composite nanowires as anode for lithium ion batteries with enhanced reversible capacity and cyclic performance. Journal of Materials Chemistry, 21 (24), 8591-8596.

Abstract

Novel TiO₂(B)@carbon composite nanowires were simply prepared by a two-step hydrothermal process with subsequent heat treatment in argon. The nanostructures exhibit the unique feature of having TiO₂(B) encapsulated inside and an amorphous carbon layer coating the outside. The unique core/shell structure and chemical composition is likely to lead to perfect performance in many applications. In this paper, the results of Li-ion battery testing are presented to demonstrate the superior cyclic performance and rate capability of the TiO₂(B)@carbon nanowires. The composite nanowires exhibit a high reversible capacity of 560 mAh g⁻¹ after 100 cycles at the current density of 30 mA g⁻¹, and excellent cycling stability and rate capability (200 mAh g⁻¹ when cycled at the current density of 750 mA g⁻¹), indicating that the composite is a promising anode candidate for Li-ion batteries.