investigation of conductivity changes and performance of lithium-ion battery cells based on modified li4ti5o12 as an anodic active material

In lithium ion batteries, choosing a suitable electrode material directly affects its performance. the li4ti5o12 spinel is an interactive lithium ion compound (or host of lithium ion) with a high lithium insertion/deinsertion voltage of approximately 1.55 volts, a much higher potential is required for solid electrolyte interphase (sei) formation than organic electrolyte depletion. this compound is used as a negative electrode in lithium ion batteries. in present work, we will study the electrochemical characteristics of modified li4ti5o12 have been studied. the synthesized li4ti5o12 nonostructure will verified by x-ray diffraction and raman scattering spectroscopy and its morphology will studied by sem. then by using electrochemical charge and discharge tests, cyclic voltammetry and their performances in lithium-ion batteries will examined and finally, its electrochemical conductivity is investigated using the electrochemical impedance spectroscopyresearch method:1) preparation of half-cell lithium ion battery based on lto and optimized lto as anode and lithium metal as cathode.2) evaluation of the battery performance with each of the components: analysis of different parameters such as the half-cell capacity in the cycle, cyclability, rate capability, evaluation of the structure change and anode surface after several cycles using sem imaging, investigation of conductivity changes by impedance measurement spectroscopy.