02438nas a2200241   4500008004100000022001400041245023300055210006900288260006900357300001200426490000800438520141000446653002301856653002401879653003601903653002201939653003601961100002101997700001802018700001602036700002202052856012202074       2007                        eng d  a1572-665700aCyclic voltammetry, electrochemical impedance and ex situ X-ray diffraction studies of electrochemical insertion and deinsertion of lithium ion into nanostructured organic-inorganic poly(3,4-ethylenedioxythiophene) based hybrids0 aCyclic voltammetry electrochemical impedance and ex situ Xray di  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcMAY  a287-2960 v6033 a<p>In this work, we discuss the electrochemical insertion and deinsertion of lithium into poly(3,4-ethylenedioxythiophene) PEDOT-V(2)O(5) nanohybrids by using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and powder ex situ X-ray diffraction (XRD) studies with special emphasis on their application potential as cathode materials for rechargeable Lithium batteries. The interlayer spacing of crystalline V(2)O(5) expands from 0.43 to 1.41 nm by the intercalation of PEDOT nanoribbons prepared by a microwave irradiation method. Cyclic voltammetry studies of PEDOT-V(2)O(5) hybrid at a slow scan rate of 0.058 mVs(-1) between 2.0-4.3 V vs. Li/ Li(+), demonstrates that structural transitions Of V(2)O(5) are suppressed and more facile intercalation features appear in terms of well-defined reversible cathodic and anodic peaks when compared to that at higher scan rate. Electrochemical Impedance studies of PEDOT-V(2)O(5) hybrid as cathode at ambient temperature with lithium metal foil as both counter and reference electrodes in 1 M LiPF(6) in a mixture of ethylene and diethylcarbonate (50:50 by volume) between the range 2.0-4.3 V reveals the usefulness of these materials. The observed capacity fading during cycling in terms of surface passivation and structural transformations is also investigated by CV, EIS and XRD analysis. (C) 2007 Elsevier B.V. All rights reserved.</p>10acyclic voltammetry10aex situ XRD studies10ahigh capacity lithium batteries10aimpedance studies10ananostructured hybrid materials1 aMurugan, Vadivel1 aReddy, M., V.1 aCampet, Guy1 aVijayamohanan, K.  uhttps://library.ncl.res.in/content/cyclic-voltammetry-electrochemical-impedance-and-ex-situ-x-ray-diffraction-studies