Detailed Thermal Characterization on a 48V Lithium-Ion Battery Pack during Charge-Discharge Cycles
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20239265
- Paper/Info type
- Other International Conferences
- Pages
- 1-11(Total 11 p)
- Date of publication
- Aug 2023
- Publisher
- JSAE & SAE
- Language
- English
- Event
- 2023 P, E&L
Detailed Information
| Category(E) | HV3 Advanced Thermal Management for Hybrid and Plug-In Hybrid Electric Vehicles |
|---|---|
| Author(E) | 1) Hossein Darvish, 2) Antonio Paolo Carlucci, 3) Domenico Laforgia |
| Affiliation(E) | 1) Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy., 2) Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy., 3) Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy. |
| Abstract(E) | This study experimentally investigates the thermal behavior of a 48V Lithium-ion (Li-ion) battery pack during two full charge-discharge cycles. The battery pack consists of three identical modules, each containing 12 prismatic Nickel Manganese Cobalt Oxide battery cells. Using 25 thermocouples, the temperature distribution of the battery pack is measured and analyzed to determine temperature changes in the cell, module, and pack. Results show that the minimum temperature occurs at the corners of the battery pack due to better convective heat transfer, while the maximum temperature occurs in the middle cells of each module. Module one is found to be more sensitive to high currents than the other modules, producing more heat and releasing it faster. Moreover, the positive tab temperature is higher than the negative tab temperature on a single cell. The pack temperature rise during the discharge cycle with constant current of -237A is found to be 5.82°C from 31.76°C that is mainly due to high current and the heat generated by moving Li-ions through the separator, while the same rising behavior is observed for the pack temperature gradient from 1.27°C to 2.72°C. finally, The difference between minimum and average pack temperatures changes linearly over a constant current and the difference between maximum and average temperatures changes nonlinearly, especially over a large current difference. This study highlights the importance of evaluating the thermal behavior of each module separately and the complexity of the Li-ion battery pack system. The findings can provide valuable insights for designing efficient cooling systems for Li-ion battery packs. |
