A Study of Fabrication and Characterization of Na_xMnO₂ as a Cathode Material for Sodium-Ion Battery

The necessity for electrochemical energy storage technologies is promptly boosted due to the spread of renewable energy sources and the promising market for net-scale battery applications. Sodium-ion batteries (SIB) are a novel battery class due to Na materials’ abundance and low cost compared to lithium. Na_xMnO_2, a sodium-based material is one of the promising candidates for large-scale SIB applications due to the diffusion of Na-ion providing high power density. In the present study, Na_0.44MnO₂ is being prepared by hydrothermal method and investigated Structural, Electrical properties, and describe electrochemical properties of materials. The Materials were characterized using various techniques including X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and UV-VIS. The Rietveld refinement performed on the respective XRD pattern led on orthorhombic structure with space group Pmc2_1. We have observed by altering anode materials with graphite, graphene, and a different portion of graphite-graphene mixture affects the efficiency and cycle life. In addition, electronic and structural properties have been modeled employing density functional theory. This synthesis process can be useful for sodium-ion battery applications.<br/>.