Electrochemical modeling and simulation of Lithium ion batteryLupšina, Neža (Avtor) Lavrenčič Štangar, Urška (Mentor) Electrochemical modelingLithium-ion batteryDualfoilBattery simulationWith the increasing focus on the use of lithium-ion (Li-ion) batteries in automotive applications, the need for simulating or mimicking the electrochemical and thermal performance of the battery is of great interest. In this master's thesis, the detailed description of electrochemistry and electrochemical modelling is presented, with the importance of many parameters used in electrochemical modelling along with investigating its sensitivity.\\ In thesis, the general description and analysis of electrochemical models are done, where the evaluation is based on their ability to simulate a complex electrochemical behaviour inside the cell. The base of electrochemical modelling is open-source code named Dualfoil. It was carefully studied in order to understand electrochemical modelling and how it can be manipulated to achieve desired goals. Dualfoil, last updated in 2014, was used to evaluate the models' accuracy and assessment of which parameters or inputs are the most sensitive ones for a specific type of battery. \\ The thesis aims to understand the detailed chemical structure and properties of Li-ion battery cell such as type of battery cell, active materials used for cathode and anode, battery housing, main or side reactions, etc. Aside from simulation work, various measurements were performed in order to characterize the commercially available battery cells chemically. \\20212021-07-06 15:35:00Magistrsko delo/naloga128214sl