Investigation of the thermoelectric material added innovative composite lithium-ion battery cathode materials

The investigation of high-performance cathode materials that use thermoelectric material to make temperature fluctuations advantageous is the focus of this thesis. The ability of thermoelectric materials to remove waste heat that degrades performance and to supply more free electrons to boost current density are tested for this purpose by doping them into cathode materials. The solution has been to make the heating issue, which is one of the most significant issues with lithium-ion batteries and occurs during chemical reactions, into an advantage. For this reason, several substitution procedures were used to examine the electrical and crystal structural characteristics of the LiFeO2 material, which is known to have poor cathode properties. In order to use LiFeO2 in battery structures, to more clearly show how performance values respond to the effect of temperature, and to better understand how thermal effects on the material can lead to. Studies have demonstrated that the thermoelectric CrFe2O4 material addition, which has qualities over 400 K, have a favorable impact on the cathode material. Particularly at the thermoelectric materials' working temperatures, the doped thermoelectric material displayed superior ionic conductivity values. The results show that suitable amounts of thermoelectric materials can be added to the cathode materials to increase performance during active charging or discharging and lower the heat emitted during the intercalation operations.