About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials – Preparation, Properties, Modeling & Applications
|
| Presentation Title |
Electro-Thermal Modeling of Heat Distribution in PEEK-Encased Cylindrical Li-Ion Batteries Under Varying Discharge Rates |
| Author(s) |
Kagiso Mampa, Patricia Popoola, Raji Sadiq, Abidemi Adeyoye, Modupeola Dada |
| On-Site Speaker (Planned) |
Abidemi Adeyoye |
| Abstract Scope |
Li-ion batteries are widely used in electric vehicles because of their long cycle life, high energy density, and lack of memory effect. However, non-uniform and elevated temperatures during charge and discharge cycles limit the battery performance. To address temperature distribution issues, this study presents an electro-thermal finite element model of an 18650 cylindrical lithium-ion battery encased in polyether ether ketone (PEEK), using COMSOL Multiphysics. This study makes use of a two-dimensional lumped thermal-electrochemical model to predict transient temperature and voltage distributions under varying discharge rates, simulating natural convective cooling and, as a result, irreversible entropy and joule effects. The results showed that the discharge rate, ambient temperature, and heat transfer coefficient highly influenced the maximum battery temperature and difference. The model predicts the maximum temperature difference of approximately 14.70 K at 2000 S, thus providing insight into the design of thermal management systems for cylindrical Li-ion cells. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Modeling and Simulation, Polymers |