An emerging electrochemically active maricite NaMnPO4 as cathode material at elevated temperature for sodium-ion batteries

Abstract

Seeking of scalable sodium-ion battery is essential to curtail the demand of energy storage applications. This work is a breakthrough for developing sodium-ion batteries. Along with this, designing a suitable cathode material of good electrochemical activity for sodium-ion batteries is a tedious challenge in battery community. In order to sort out these issues, maricite NaMnPO4 material is synthesized by simple solid state reaction and employed as a cathode material for sodium-ion batteries. The material has been investigated by X-ray diffraction analysis, FTIR and Raman spectroscopy and transmission electron microscopy. Formation of well-defined crystal structure is observed by the stepwise effect of calcination temperature. The crystalline structure of the as-prepared NaMnPO4 is analyzed by X-ray diffraction analysis. The material is indexed to the orthorhombic system with the space group of Pmnb. Nanosize of the material is confirmed using transmission electron microscopy. An attempt is made to investigate the electrochemical behavior of maricite NaMnPO4.