Study and identification of the thermo-electric behavior of lithium-ion batteries for electric vehicles

In this paper, the study and the modeling of a lithium-ion battery cell is presented. A programmable electronic load was laboratory designed and realized in order to reduce the cost of the total equipment. The testing system is supplemented with a commercial programmable power supply. This dedicated laboratory equipment can be used to apply cycles according to user defined current profiles. Some tests were performed on the battery cell. The acquired data allowed to carry out the battery modeling and the parameters identification procedure. Finally, the mechanical and the thermal phenomena to which a battery is subjected are presented and discussed.