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International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

THERMAL MANAGEMENT OF LITHIUM ION BATTERY MODULE: AIR COOLING STRATEGIES FOR THE HOTSPOTS

Zhao Lu
Xi'an Jiaotong University, School of Energy and Power Engineering, 710049, Xi'an

X.Y. Yu
Xi'an Jiaotong University, School of Energy and Power Engineering, 710049, Xi'an

L.C. Wei
Xi'an Jiaotong University, School of Energy and Power Engineering, 710049, Xi'an; Shenzhen Envicool Technology Co., Ltd, 518000, Shenzhen

L. Y. Zhang
Xi'an Jiaotong University, School of Human Settlements and Civil Engineering, Shaanxi Technology Research Center of Built Environment and Energi Engineering, 710049, Xi'an

S. Gao
Xi'an Jiaotong University, School of Human Settlements and Civil Engineering, Shaanxi Technology Research Center of Built Environment and Energy Engineering, 710049, Xian; China Academy of Engineering Physics, 621907, Jiangyou

Liwen Jin
Xi'an Jiaotong University, School of Human Settlements and Civil Engineering, Shaanxi Technology Research Center of Built Environment and Energy Engineering, 710049, Xi'an;

Xiangzhao Meng
Xi'an Jiaotong University, School of Human Settlements and Civil Engineering, Shaanxi Technology Research Center of Built Environment and Energy Engineering, 710049, Xi'an

DOI: 10.1615/IHTC16.ctm.023749
pages 4029-4036


SCHLÜSSELWÖRTER: Thermal management, Numerical simulation and super-computing, lithium ion battery, hotspots

Abstrakt

Temperature is a critical factor that affects the performance, safety and cycle life of Lithium-ion batteries. Therefore, proper battery thermal management system is essential for the success of electric vehicles. In this study, three dimensional numerical simulations were performed for thermal behaviors and flow characteristics of the stagger-arranged battery pack with fixed parts between batteries. These two parameters, namely, Reynolds number, thermal conductivity of fixed part materials between batteries were examined. The numerical results show that (i) the thermal behavior of the staggerarranged battery pack is seriously affected by the fixed parts between batteries with low thermal conductivity. In addition, the high temperature zones of computational domain occur at the fixed parts between the last two rows of batteries along airflow direction; (ii) as for the stagger-arranged battery pack with laminar airflow, the required lowest thermal conductivity of fixed parts is 2 W·m-1·K-1 to satisfy thermal behavior and electrical insulation concurrently.

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