Project 2 Thermal modeling of battery pack

Aim : For a 10 cell series lithium ion battery model, simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB.

10 cell series lithium-ion battery schematic diagram:

• The total output voltage of the series connection is the sum of all 10 cells' voltages.
• This setup is essential for analyzing the electrical performance and thermal effects in a multi-cell battery system.
• Additional blocks, such as thermal models, current sensors, or load components, can be added to simulate other performance parameters like temperature rise or SOC.

Circuit Diagram:

Thermal effects: Analyze heat generation during charging/discharging at various temperatures and C-rates.

Life cycle performance: Evaluate how temperature and charge/discharge rates affect battery degradation over time.

OUTPUT :

Temperature 300 K

Temperature 330 K

Temperature

Temperature rise across cells during charging and discharging at different rates and ambient temperatures.

Faster degradation at higher temperatures and C-rates, showing reduced capacity and efficiency.

Changes in voltage during charge/discharge cycles, highlighting performance at varying temperatures.

Variations in SOC over time under different thermal and electrical conditions.