I-CReST 2025:115-078 – a synthesis and characterisation of doped dysprosium in LIMNTIO4 cathode materials for lithium-ion batteries

The demand for enhanced performance in Li-ion batteries necessitates the development of advanced cathode materials. This study investigates the synthesis and characterisation of dysprosium (Dy)-doped LiMn1.9Ti0.1-xDyxO4 (x = 0.00, 0.01, 0.05) cathode materials, focusing on their structural, compositional, and morphological properties. The primary objective is to understand how dysprosium substitution at the titanium site influences these properties and the overall electrochemical performance of the material. Using the self-propagation combustion synthesis method, high purity and single-phase formation with reduced particle sizes were achieved. The thermal properties were studied by Simultaneous Thermal Analysis (STA). Structural analysis through X-ray diffraction (XRD) revealed significant changes in the crystal lattice parameters, confirming successful doping. Field emission scanning electron microscopy (FESEM) provided detailed insights into the morphology of the material. These results suggest that dysprosium-doped LiMnTiO4 is a promising candidate for next-generation Li-ion battery cathodes. In conclusion, this research demonstrates the potential of dysprosium doping in enhancing the properties of LiMnTiO4 cathode materials, offering valuable insights for the development of high-performance and sustainable energy storage solutions.