Abstract:
In this research, the structure parameters, conducting and dielectric properties of Na3Fe2(PO4)3 and
Na2FePO4F polycrystals were studied obtained by solid-phase synthesis. The phase transition temperatures, conducting and dielectric parameters of Na3Fe2(PO4)3 and Na2FePO4F polycrystals were
refined. A comparative evaluation of the conductive properties of Na3Fe2(PO4)3 and Na2FePO4F
polycrystals is given in this article. The prospects of using of Na3Fe2(PO4)3 and Na2FePO4F are
justified as electrode materials in sodium ion batteries.