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Electrospun TiO2−δNanofibers as Insertion Anode for Li-Ion Battery Applications

Electrospun TiO2−δNanofibers as Insertion Anode for Li-Ion Battery Applications

Authors :
Sundaramurthy, Jayaraman
Aravindan, Vanchiappan
Suresh Kumar, Palaniswamy
Madhavi, Srinivasan
Ramakrishna, Seeram
Source :
The Journal of Physical Chemistry - Part C; July 2014, Vol. 118 Issue: 30 p16776-16781, 6p
Publication Year :
2014

Abstract

A scalable electrospinning technique is used to synthesize 1D TiO2nanofibers for Li-ion battery applications. Oxygen deficiency (TiO2−δ) in anatase phases is created by treating the nanofibers in the H2atmosphere with various temperature conditions. Structural and morphological features of both pure and oxygen deficient phases are analyzed by X-ray diffraction and scanning electron microscopy, respectively. Li-insertion properties of such nanofibers are evaluated in half-cell configuration at high current rate of 150 mA g–1and found that there is no improvement in the reversible capacity after H2treatment. Improved cycling profiles are noted for such deficient phases compared with pure TiO2nanofibers. ac impedance spectra were also conducted to validate the electrical conductivity profiles of the electrospun TiO2nanofibers.

Details

Language :
English
ISSN :
19327447 and 19327455
Volume :
118
Issue :
30
Database :
Supplemental Index
Journal :
The Journal of Physical Chemistry - Part C
Publication Type :
Periodical
Accession number :
ejs32138277
Full Text :
https://doi.org/10.1021/jp412787z