Li<inf>1.5</inf>Fe<inf>0.5</inf>Ti<inf>1.5</inf>(PO<inf>4</inf>)<inf>3</inf>/C phosphate as promising electrode material for electrochemical energy storage

The aim of this study is to improve the electrochemical performances with carbon coating and comparison new formulations of which are used two kinds of binders: CarboxyMethyl Cellulose (CMC) and PolyVinylidene Fluoride (PVDF) with water and NMethyl-2-Pyrrolidone (NMP) respectively as solvent. Li 1.5 Fe 0.5 Ti 1.5 (PO 4 ) 3 /C (LFTP/C) composite synthesized by simple sol gel method, followed by thermal treatment at 600 °C under argon atmosphere to improve the electronic conductivity. X-ray diffraction (XRD) confirms that the LFTP and LFTP/C crystalizes in the rhombohedral system (SG: R-3c). The electrochemical study shows a good cycling stability for CMC rather than PVDF, furthermore cyclic voltammetry confirms the results of galvanostatic test allowing us to consider the CMC as an alternative binder for Lithium ion batteries LIBs.