SYNTHESIS AND CHARACTERIZATION OF LIFEPO4 BY FLAME SPRAY PYROLYSIS – A LI-ION BATTERY CATHODE MATERIAL

Abstract

Flame Spray Pyrolysis is a method used in the synthesis of LiFePO4 with subsequent heat treatment in tubular furnace for Li-ion battery application as cathode material. The crystal structure, morphology of LiFePO4 synthesized by Flame Spray Pyrolysis was studied by X-ray diffraction (XRD) and Field emission scanning electron microscopy (FESEM). From the Debye-Scherer equation, LiFePO4 particles obtained by this method are pure, homogeneous and well-crystallized with size ranging from of 25 – 60nm. FESEM data reveal that the particles are in spherical morphology with primary particle size ranging from 15-75nm.