Journal
JOURNAL OF POWER SOURCES
Volume 195, Issue 19, Pages 6893-6896Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.04.005
Keywords
Hollow microsphere; Nanotube; Lithium-ion battery; TiO2; Anatase
Funding
- National Key Project of China for Basic Research [2006CB202600]
- National High Technology Research and Development Program of China [2007AA03Z222]
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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.
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