SYNTHESIS AND CHARACTERIZATION OF ALTERNATIVE ANODE MATERIAL, LI4TI 5 O12 BY SOLID STATE ROUTE

Abstract

As the demand for the better, lighter and more efficient microelectronic portable devices increases, the development of lithium ion batteries as power sources with high performance becomes essential. Within this frame work alternative Li 4 Ti 5 O 12 (LTO) anode material has been prepared and characterized to evaluate its electrical properties. Synthesis of LTO through solid state route is considered as economical, efficient and easy way for the mass production. Therefore, spinel type LTO is prepared using solid state reaction route. Further, the different physio-chemical characterization such as SEM, EDS, XRD, Conductivity measurement, I-V characteristics and activation energy calculation for LTO was performed. To optimize performance of lithium ion batteries in terms of good cycle ability, capacity and power density during the electrochemical analysis of batteries. These characterizations showed that LTO has low conductivity and have high activation energy. Hence to improve the conductivity, C 2 H 2 treatment was performed on LTO. Which showed improvement in its characteristics by lowering the activation energy and increasing the conductivity due to carbon deposition.