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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
- 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