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Electrochemical performance of anodized TiO2 Nanotubes for rechargeable Lithium Batteries

Published online by Cambridge University Press:  30 August 2011

R. Prasada Rao ,
L. Kangle ,
S. Adams ,
M.V. Reddy  and
B.V.R. Chowdari
R. Prasada Rao*
Affiliation:
Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
L. Kangle
Affiliation:
Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
S. Adams
Affiliation:
Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
M.V. Reddy
Affiliation:
Department of Physics, National University of Singapore, Singapore, 119260, Singapore
B.V.R. Chowdari
Affiliation:
Department of Physics, National University of Singapore, Singapore, 119260, Singapore
*
*Email: [email protected]
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Abstract

The electrochemical storage performance of anatase TiO2 nanotubes (NT) is compared to the performance of TiO2 nanotubes covered by sulfur. Charge/discharge curves and cycling performance of TiO2 NT with and without sulfur deposition with respect to lithium anodes are demonstrated in electrochemical test cells. At 0.5C cycle rate the TiO2 NT exhibited a first cycle specific charge/discharge capacity of 180/155 mAh/g, whereas the TiO2 NT deposited with sulfur showed a remarkably higher performance at 0.5C cycle rate with first cycle charge/ discharge specific capacities of 258/260 mAh/g and a coulombic efficiency of 98%.

Keywords

nanostructurex-ray diffraction (XRD)energy storage
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1333: Symposium M – Nanostructured Materials for Energy Storage , 2011 , mrss11-1333-m06-02
Copyright
Copyright © Materials Research Society 2011

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