Synthesis, Structural Characterization and Electrochemical Performance of In-situ Dual-Phase × Li₄Ti₅O₁₂/(1-x) TiO₂ Nano-Composites for Li-ion Batteries

 Aftab Asghar Chattha1

Abstract

In-situ dual phase X Li4Ti5O12/(1-x) of LTO: TO due to varying heat treatments of the same dried gel with Li:Ti=4.5:6. Composites of LTO with TiO2 showed reduced band gaps and predicted increased electronic conductivity of the samples for enhanced electrochemical performance as anodes of Li-ion batteries. XPS showed that in both LTO and LTO/TO nano-composites, Ti cations are in the oxidation state of 4+, indicating the charge neutrality and suitability for oxidation/ reduction reactions during Li-ion intercalation/de-intercalation.