NaFePO<sub>4</sub> Particles as a Cathode of Sodium Ion-Battery via Sol-Gel Method: A Review on Synthesis

NaFePO 4 , which is analogue to LiFePO 4 , has been expected to show similar properties as LiFePO 4 that has a good cycle stability and excellent electrochemical performances. Here we report the synthesis of NaFePO 4 via sol-gel method and the structural study of NaFePO 4 as a cathode material for sodium-ion battery (SIB). The as-synthesized NaFePO 4 samples were calcined under air and argon atmosphere at the constant holding time of 10 hours with the variation of calcined temperature. In this report, we present the successfully synthesized NaFePO 4 based on XRD and SEM result. XRD results show the presence of NaFePO 4 as a major phase and some amount of secondary phase. SEM result indicates the plate-like particle which tends to agglomerate with the size range 2-5 .