How can a battery thermal management system improve its thermal performance?

The optimal design of the structure of the battery thermal management system can greatly improve its thermal performance. The purpose of this paper is to address situations where structural parameters may exist as discrete or continuous variables, and to provide a more comprehensive design approach for similar battery thermal management systems.

How are the batteries arranged in the cooling channel?

The batteries are arranged in the cooling channel, the spacing between adjacent batteries is set to 3.5 mm, the spacing between the channel wall and batteries is fixed at 4 mm, the size of the channel is 112 × 90.5 × 73 mm, and the inlet and outlet diameters, as illustrated in Fig. 1(b), (c), are both set to 6 mm.

What is the temperature uniformity of a battery pack after structural optimization?

The results show that after the structural optimization, the T max of the battery pack is 32.73 °C and the ΔT max is 4.15 °C. Comparing the temperature distribution of the heat sink system before optimization, the temperature uniformity of the battery pack has been greatly improved.

How to choose the best battery cooling system?

By comparing the implementation difficulty, stability and manufacturing cost, and thermal performance of the optimized battery pack model, the most suitable battery cooling system is determined. First, impact degree tests are conducted on the air inlet channel angle, side inclination angle, and battery cell spacing.

How to improve the cooling channel structure?

To further enhance the cooling channel structure, an orthogonal experimental design was formulated based on the aforementioned research. Through the multi-objective optimization approach, the optimal combination of parameters is derived. 2. Numerical modeling

What is the optimal cooling channel structure?

The optimal cooling channel structure parameters S, H, L, and Q were determined to be 3 mm, 42 mm, 26 mm, and 0.04 kg/s, respectively. Compared to the original channel structure, this optimized structure resulted in a reduction of 13.7 % in T m and 20.3 % in ΔT m, significantly improving cooling performance.