Publication Type:

Journal Article

Source:

RSC Advances, Volume 2, Number 2, p.531-537 (2012)

URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-84856220670&partnerID=40&md5=ff064a58917e4c49b8dd4b1f4f2b5cfe

Keywords:

Capacity loss, Capacity retention, Capacity value, Current rate, Discharge-charge, Electrospuns, Functionalized multi-walled carbon nanotubes, Grain (agricultural product), Li-ion batteries, Lithium batteries, Lithium compounds, Lithium-ion battery, Nano-fibrous, Nanofibers, Nanostructures, Raman spectroscopy, Sintering, Sintering process, Surface area measurement, TiO, Titanium dioxide, transmission electron microscopy, X ray diffraction, X ray photoelectron spectroscopy

Abstract:

Nanofiber- and rice grain-shaped TiO 2 nanostructures and their composites with functionalized multiwalled carbon nanotubes were fabricated by electrospinning and subsequent sintering process for applications in Lithium ion batteries. The fabricated nanostructures were characterized by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, scanning-and transmission electron microscopy and surface area measurements. All nanostructured materials showed average discharge-charge plateaux of 1.75 to 1.95V. The nanofibrous- and rice grain-shaped TiO 2 nanomaterials showed stable performances of 136 (± 3) mAh g -1 and 140 (± 3) mAh g -1, respectively, at the end of 800 cycles in the cycling range of 1.0-2.8 V vs. Li at a current rate of 150 mA g -1. TiO 2-CNT (4 wt.%) composites showed a slightly lower capacity value but better capacity retention (8% capacity loss between 10-800 cycles). We believe that the present long term cycling materials would have wide interests in lithium ion batteries research. © 2012 The Royal Society of Chemistry.

Notes:

cited By 60

Cite this Research Publication

P. Zhu, Wu, Y., Reddy, M. V., A. Nair, S., Chowdari, B. V. R., and Ramakrishna, S., “Long term cycling studies of electrospun TiO 2 nanostructures and their composites with MWCNTs for rechargeable Li-ion batteries”, RSC Advances, vol. 2, pp. 531-537, 2012.