Research Information System
Journal of Optoelectronics and Advanced Materials, vol.28, no.1-2, pp.86-93, 2026 (SCI-Expanded, Scopus)
Lithium-ion batteries have been widely researched for academic and industrial applications owing to their high energy density, safety, versatility, and long life in recent years. The cathode material plays a crucial role in determining the energy density, voltage, and overall battery performance. Among cathode materials, o-LiMnO₂ has a higher energy density and operating voltage than its counterparts in other phases and structures. Herein, we successfully synthesized o-LiMnO2 without impurities or secondary phase formation by controlling the temperature of hydrothermal synthesis. We have investigated the surface morphology of the synthesized LiMnO₂ nanoparticles using SEM method. The structural properties obtained using XRD and XPS. These results demonstrate that temperature plays a critical role in determining the phase purity and crystallinity of the sample. The purest orthorhombic structure of the LiMnO₂ nanoparticles was observed for the sample synthesized at 200°C for 14 h. LiMnO2 based electrode (LiMnO2:CB:PVA (80:11:9)) were coated onto an ITO/glass substrate using the Dr. Blade method. Then, the electrochemical properties of electrode were investigated using the three-electrode method. The highest amounts of intercalated and deintercalated charge densities were obtained for the purest orthorhombic LiMnO₂ phase. This simple and efficient synthesis method are a promising approach for future studies of o-LiMnO₂, as it has improved structural stability and electrochemical properties compared to other LiMnO₂ polymorphs, making it a potential candidate for use in high-performance lithium-ion batteries.