Enhanced thermal management of lithium-ion batteries using hybrid nanofluids in finned mini-channels: Energy and entropy analyses
Efficient thermal management is crucial for maintaining the safety and lifespan of battery packs, particularly during high-discharge operations. This study investigates an innovative approach to cooling these batteries by modifying traditional rectangular mini-channels with bio-inspired fins, modele...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
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| Series: | Engineering Science and Technology, an International Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098625001247 |
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| Summary: | Efficient thermal management is crucial for maintaining the safety and lifespan of battery packs, particularly during high-discharge operations. This study investigates an innovative approach to cooling these batteries by modifying traditional rectangular mini-channels with bio-inspired fins, modeled after dolphin dorsal shapes and fish contours. Unlike conventional cooling designs, these structures enhance fluid mixing and heat transfer efficiency when paired with a hybrid nanofluid (Fe3O4–SWCNT in water) under laminar flow conditions. A time-dependent numerical simulation was conducted to replicate unsteady heat generation in battery cells, and the results were validated against established studies. The findings indicated that dolphin dorsal fins and fish-shaped fins reduce total entropy generation by 28.59 % and 14.12 %, respectively, compared to a standard mini-channel. Additionally, the convective heat transfer coefficient improved by 20.18 % with dolphin fins and 43.04 % with fish fins, demonstrating superior thermal regulation. The hydrothermal performance, evaluated using the performance evaluation criterion (PEC), showed that the fish-shaped fins outperformed dolphin fins by 42.87 %, achieving a PEC value of 1.12. These results highlight the effectiveness of bio-inspired fin geometries in optimizing battery cooling systems, offering a promising strategy for improving the efficiency and longevity of batteries in electric vehicles. |
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| ISSN: | 2215-0986 |