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Electrochemical lithium storage of TiO2hollow microspheres assembled by nanotubes

Authors
Journal
Journal of Power Sources
0378-7753
Publisher
Elsevier
Publication Date
Volume
195
Issue
19
Identifiers
DOI: 10.1016/j.jpowsour.2010.04.005
Keywords
  • Hollow Microsphere
  • Nanotube
  • Lithium-Ion Battery
  • Tio2
  • Anatase
Disciplines
  • Chemistry
  • Earth Science
  • Geography

Abstract

Abstract TiO 2 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 0.2 C reach 290 and 232 mAh g −1 respectively. Moreover, as-prepared TiO 2 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.

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