Author/Authors :
Prince، نويسنده , , A.A.M. and Mylswamy، نويسنده , , S. and Chan، نويسنده , , T.S. and Liu، نويسنده , , R.S. and Hannoyer، نويسنده , , B. and Jean، نويسنده , , M. and Shen، نويسنده , , C.H and Huang، نويسنده , , S.M. and Lee، نويسنده , , J.F. and Wang، نويسنده , , G.X.، نويسنده ,
Abstract :
A crystalline form of LiFePO4 has been synthesized by solid-state reaction using LiOH, FeC2O4·2H2O and (NH4)2HPO4 under reducing (5% H2 and 95% Ar) atmosphere. The sample was characterized by X-ray diffraction (XRD), Mِssbauer and X-ray absorption near-edge spectroscopic (XANES) methods. The crystal parameters were derived from Rietveldʹs refinement of the XRD data. The oxidation state of Fe was investigated by Mِssbauer and Fe K-edge XANES spectral techniques.
Keywords :
B. Lithium ion batteries , C. Cathode material , E. Electric charge and discharge , X. XANES , M. Mِssbauer spectroscopy
