The European Physical Journal Applied Physics

Nanomaterials and Nanotechnologies

Polymer intercalated V2O5 nanostructured cathodes for secondary batteries

Ch. V. Subba Reddya1, Wei Jina1, Quan-Yao Zhua1, W. Chena1 and R. R. Kallurua2

Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P.R. China

Mississippi Ethanol LLC, 86 Industrial Park Boulevard, Winona, MS 38967-186, USA

Abstract

PVP x V2O5 (x = 0, 0.5 and 1) nanobelts were obtained using a simple hydrothermal process from V2O5 xerogel. The structure and morphology of the samples were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The interaction between the poly (vinyl pyrrolidone) (PVP) and V2O5 xerogel in the nanocomposites was verified by Fourier transformation infrared spectroscopy (FTIR). The electrochemical cells, with a configuration Li/(LiPF6 + EC + DMC)/(V2O5 + PVP), were fabricated and their electrochemical performance was studied.

(Received October 25 2006)

(Accepted February 2 2007)

(Online publication March 14 2007)

PACS:

  • 82.45.Fk – Electrodes;
  • 82.45.Gj – Electrolytes;
  • 82.47.Aa – Lithium-ion batteries
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