Experimental Analysis of Battery Thermal Management Techniques for Electric Vehicle Lithium-Ion Batteries Using MATLAB Simulink, Simscape, and Stateflow Simulations

2025-01-8165

To be published on 04/01/2025

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WCX SAE World Congress Experience
Authors Abstract
Content
The integration of lithium-ion batteries into electric vehicles represents a significant advancement in the automotive industry. These batteries are widely utilized in energy storage systems. The extended life cycle, low self-discharge rates, high energy density, and eco-friendliness of lithium-ion batteries are well-known. However, Lithium-ion batteries are highly sensitive to temperature, adversely affecting their performance, lifespan, and safety. Therefore, effective thermal management is critical to ensuring optimal operating conditions and mitigating the risk of thermal runaway. To address this, experimental study was conducted on various battery thermal management techniques, including active, passive, and hybrid approaches. These techniques were investigated for their cooling efficiencies under different operating conditions. The study utilized MATLAB Simulink, Simscape, and Stateflow to simulate the electro-thermal behavior of cylindrical lithium-ion battery cells, battery pack and supervisory control strategies. This experimental study was conducted on thermal conductivity of Liquid Cooling (LC), Air Cooling (AC), Heat Pipe (HP), and Phase Change Material (PCM) techniques and evaluated the thermal performance of both individual and hybrid thermal management techniques according to the C rate of the battery. The Simulation results were analyzed under high-power charging and discharging conditions typical of electric vehicles. The investigation identified that, active thermal management techniques can reduce the temperature rise during the deep discharging cycle. However, not all driving situations and environmental factors call for active cooling. For modest vehicle speeds and regular ambient temperatures, passive cooling is adequate. The experimental analysis indicates that, hybrid thermal management strategies offer a better trade-off between energy efficiency and effective thermal conductivity depending on runtime requirements.
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Citation
Thangaraju, S., N, M., and Ganesan, M., "Experimental Analysis of Battery Thermal Management Techniques for Electric Vehicle Lithium-Ion Batteries Using MATLAB Simulink, Simscape, and Stateflow Simulations," SAE Technical Paper 2025-01-8165, 2025, .
Additional Details
Publisher
Published
To be published on Apr 1, 2025
Product Code
2025-01-8165
Content Type
Technical Paper
Language
English