Loading...

Design and Simulation of Thermal Management System for Electric Vehicle Lithium-Ion Battery Module

Asl Ghasemi Oghani, Marzieh | 2024

0 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57689 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Moeini Aghtaei, Moein
  7. Abstract:
  8. In light of environmental concerns and the increasing demand for clean energy, electric vehicles have emerged as a sustainable and powerful solution for urban and intercity transportation, playing a significant role in today's world. Consequently, we are witnessing a replacement of conventional gasoline-powered vehicles with electric technology in the global automotive industry. This technological shift is highly valuable and important, considering its impact on improving environmental quality. Major automotive manufacturers have successfully produced and introduced several hybrid, plug-in hybrid, and fully electric vehicles to the market Among these innovations, the lithium-ion battery pack stands out as one of the key components of electric vehicles and is the most expensive part. Its design and production require adherence to specific technical considerations. A lithium-ion battery pack is created by connecting modules in series and parallel, with the modules themselves comprising several lithium-ion battery cells Lithium-ion cells are suitable for use in electric vehicle battery packs due to their high energy density. However, they have performance limitations that must be considered during the design process. Overall, the design of battery packs necessitates particular considerations regarding thermal, electrical, and mechanical factors, with this research focusing on the thermal considerations. In this context, controlling the temperature of the battery cells within the optimal range of15 to35 degrees Celsius and ensuring uniform temperature distribution across the battery pack are crucial for enhancing the performance, lifespan, and safety of lithium-ion cells. Given the rapidly advancing technology of battery cells and their increasing energy density, higher efficiency thermal management systems are essential to achieve optimal and prolonged performance in electric vehicles. In this research, a lithium-ion battery module belonging to the BMW i3 was selected as the design model. Based on the design of this company, a lithium-ion battery module with an innovative thermal management system has been developed, consisting of a series connection of12 prismatic cells, each rated at80 amp-hours. After detailing the physical model of the proposed design, the thermal performance simulation of the battery module under charge and discharge rates of1C,2C, and3C will be described to validate the performance of the designed module. The results of the simulation indicate that the designed thermal management system can maintain the operating temperature of the battery cells within the optimal range of15 to35 degrees Celsius, ensuring that the temperature gradient among cells remains below5 degrees Celsius at discharge rates of1C,2C, and3C. Furthermore, in the newly developed design, in addition to maintaining optimal operating temperatures across the battery module compared to the baseline model (a BMW i3 battery module), it also excels in terms of dimensions, weight, and manufacturing complexity
  9. Keywords:
  10. Lithium Ion Batteries ; Lithium-Ion Battery Cooling ; Lithium-Ion Battery Pack Thermal Management System ; Lithium-Ion Battery Cold Plates ; Battery Pack Thermal Management ; Heat Management ; Electric Motor Vehicles

 Digital Object List

 Bookmark

...see more