%0 Journal Article
%T Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery
%A E. Sheha
%A M. H. Makled
%A Walaa M. Nouman
%A A. Bassyouni
%A S. Yaghmour
%A S. Abo-Elhassan
%J Graphene
%P 178-188
%@ 2169-3471
%D 2016
%I Scientific Research Publishing
%R 10.4236/graphene.2016.54015
%X The aim of the present work is to introduce a high performance cathode for magnesium-ion batteries. A simple ball mill process is employed to synthesize (V<sub>2</sub>O<sub>5</sub>)<sub>1-x</sub> (Graphene Nanoplatelets (GNP))<sub>x</sub> nanocomposite, (where x = 0, 5, 10, 15, 20 and 25 wt.% GNP). The synthesized samples are characterized using scanning electron microscope (SEM), X-ray diffraction (XRD) technique, impedance spectroscopy, cyclic voltammetry and charge-discharge test. The maximum conductivity of the investigated samples was found to be 6 กม 10<sup>-1</sup> S/cm for optimum composite film (25 wt% GNP) at room temperature. Room temperature rechargeable magnesium batteries are constructed from Mg as anode material, (V<sub>2</sub>O<sub>5</sub>)<sub>1-x</sub>(GNP)<sub>x</sub> as a cathode material and the simple non-aqueous electrolyte based MgNO<sub>3</sub>กค6H<sub>2</sub>O. Mg/V<sub>2</sub>O<sub>5</sub> cells employing as-prepared electrolyte exhibit initial discharge capacity ~100 mAhg<sup>-1</sup> while Mg/(V<sub>2</sub>O<sub>5</sub>/GNP (x = 25t.%)) cathode produces a lower initial capacity of ~90 mAhg<sup>-1</sup>. The high initial discharge capacity of V<sub>2</sub>O<sub>5</sub> can be attributed to the presence of a large (001) interlayer spacing (กซ11.53 A) for facile Mg<sup>+</sup> insertion/extraction.
%K Magnesium Batteries
%K Vanadium Oxide
%K Graphene
%K Conductivity
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=71591