Industrial and Materials Science

"<span style="font-size: 12.0pt; font-family: 'Aptos',sans-serif; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Aptos; color: black; mso-ansi-language: SV; mso-fareast-language: SV; mso-bidi-language: AR-SA;">Analyzing the benefits of EIS for temperature model in high voltage battery control system (Volvo Cars-industrial Master thesis project)"
<span style="font-size: 12.0pt; font-family: 'Aptos',sans-serif; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Aptos; color: black; mso-ansi-language: SV; mso-fareast-language: SV; mso-bidi-language: AR-SA;">Abstract: Accurate internal temperature estimation in lithium-ion batteries is essential for ensuring safety and maximizing performance, especially in high-demand applications such as electric vehicles and energy storage systems. Traditional sensing methods, like thermocouples, often fail to capture internal thermal gradients and may be intrusive or slow to respond. As interest grows in sensor-less and real-time diagnostic techniques, this study investigates the use of Electrochemical Impedance Spectroscopy (EIS) as a non-invasive method to estimate the internal temperature of battery cells. By leveraging the intrinsic relationship between impedance characteristics and thermal behavior, the work aims to enable efficient, accurate, and real-time temperature estimation without the need for embedded sensors. This approach supports the development of smarter, safer, and more resilient battery management systems.
Program: MPMOB Mobility Engineering Examiner: Jinhua Sun, IMS Supervisor: Aravind Poolla, Volvo Cars Corporation
Opponent: Jayanth Soragaon
Date and time: 26 August 2025, 11.00-12.00 Location: <a rel="noopener" href="https://maps.chalmers.se/#0879aeaf-b53a-4f7a-98b5-ed90e372059d" target="_blank" title="Beta" data-anchor="#0879aeaf-b53a-4f7a-98b5-ed90e372059d">Beta</a>

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Presentation of master thesis

Master thesis presentations at Industrial and Materials Science

26 August 2025

11.00-12.00: Sharmith Patel Nagaraj, MPMOB