چكيده به لاتين
While production and consumption of energy are increasing, the growing demand for energy storage devices is becoming more and more important.
In order to meet this demand, rechargeable lithium batteries have recently drawn attention and the main candidates for replacing liquid electrolytes in these batteries are glasses and glass-ceramics.
In this research, we tried to measure the ion conduction of B2O3-Li2O base glass in molten and solid state, also the effects of temperature and addition of halide salts were studied, for this purpose a full set up for measuring the electrical properties of molten state was designed and constructed.
In this study, the behavioral information of samples was collected using phase analysis (XRD), thermal analysis (STA) and electrochemical impedance spectroscopy (EIS). also by modeling the ion conduction in molten state, the conduction behavior and activation energy of each samples were estimated using MATLAB software.
It has been observed that in molten state, the temperature factor plays an essential role in controlling the ion conduction and by lowering the temperature, other factors will have allowed to perform better. also in solid state, addition of lithium halide salts can increase the ionic conductivity by 2 to 5 times.
Key words
Solid state electrolyte, ion conduction in glass melts, electrochemical impedance spectroscopy, synthesis of Li4Ti5O12/C, ion conduction modeling
