@thesis{Aydin2021, author = {Aydin, Serkan}, title = {Comparative measurements on lithium-ion batteries for RC equivalent circuit modelling}, publisher = {Technische Hochschule Ingolstadt}, address = {Ingolstadt}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:573-11175}, pages = {x, 79}, school = {Technische Hochschule Ingolstadt}, year = {2021}, abstract = {This master thesis aims to perform different measurements on Lithium ion (Li-ion) batteries containing different cell chemistries by changing the temperature, State of Charge (SoC), and C-Rate variables. First, extensive research was conducted on what type of lithium-ion batteries should be used, and also different test sequences and a test plan were created that takes into account the characteristics of the batteries and other conditions that will affect the experiments. Next, the equipment that should be used for the experiments was selected and examined. After equipment selection, the battery tester, which played the most crucial role in this project, was tested with various batteries, and the results of these tests were deeply analyzed. Then, a wooden rig has been created for the experiments, which holds the battery in the temperature chamber while testing. This was a critical step because the connections of the batteries were not supposed to be disconnected during the experiments. Finally, after the tests were completed, internal resistance and single RC equivalent circuit model elements calculated with different methods by using Matlab scripts and these results are presented in this thesis with various graphs.}, language = {en} }