Physical and electrochemical properties of LiFePO4 nanoparticles synthesized by a combination of spray pyrolysis with wet ball-milling

摘要: Abstract A novel preparation technique was developed to synthesize LiFePO 4 nanoparticles through a combination of spray pyrolysis (SP) with wet ball-milling (WBM). Using this technique, the investigated for wide range process parameters such as time and sintering temperature. The effect on physical electrochemical properties then discussed analysis using by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission (TEM), Brunauer–Emmet–Teller (BET) method, Raman spectroscopy an cell Li|1 M LiClO in EC:DEC = 1:1|LiFePO . geometric mean diameter 58 nm were prepared at rotating speed 800 rpm 12 h Ar atmosphere followed heat treatment 500 °C 4 h N 2  + 3% H atmosphere. sample delivered first discharge capacities 164 100 mAh g −1 charge–discharge rates 0.1 10 C test cells, respectively. strongly affected formation Fe P, 3 P α-Fe O higher rates.