Thermal performance of cylindrical lithium-ion battery module integrated with fin and water-cooling system
APPLIED THERMAL ENGINEERING, cilt.304, ss.1-13, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 304
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.applthermaleng.2026.132897
- Dergi Adı: APPLIED THERMAL ENGINEERING
- Derginin Tarandığı İndeksler: Business Source Ultimate (EBSCO), Scopus, Science Citation Index Expanded (SCI-EXPANDED), Compendex, INSPEC, DIALNET
- Sayfa Sayıları: ss.1-13
- Van Yüzüncü Yıl Üniversitesi Adresli: Evet
Özet
Battery thermal management system design is of great importance for lithium-ion battery performance. Especially at high discharge rates and high environmental temperatures, it is difficult to control cell temperature within the safe temperature range. In these cases, liquid cooling may be the most solution. In this study, a new battery cooling system is designed, focusing on indirect cooling where the coolant is separated from the cells, and incorporating a sixteen-cell battery module with a fin and tube structure. The battery cells are housed within a finned structure and are exposed to both air and water flow. The battery thermal performance is experimentally investigated at different flow rates, inlet water temperature and discharge rate. In the battery module without water flow, a decrease of between 24% and 34% is observed in the battery temperature depending on the flow rate when compared to the battery module with water flow. While flow rate does not significantly affect battery temperature at low discharge rates, as the discharge rate increases, there is a 3.3 ℃ temperature difference between the smallest and largest flow rates. Water inlet temperature is an important parameter for battery thermal management and at lower water inlet temperatures, the average battery temperature of the module is lower. However, when considering battery temperatures before discharge, it is found that lower water temperatures do not have a less significant effect on battery temperature increase and are approximately 5 ℃ higher. When temperature increases are taken into consideration, it is observed that water temperatures between 20 and 30 ℃ are more effective for cooling the battery. Additionally, voltage drop is greater and discharge time is shorter at lower temperatures. Low temperatures increase internal resistance. In the cooling system design, since the cells are placed inside aluminum tubes and fins, cooling by natural convection is also possible at low discharge rates.