Energy Storage Science and Technology ›› 2023, Vol. 12 ›› Issue (6): 1880-1889.doi: 10.19799/j.cnki.2095-4239.2023.0006

• Energy Storage System and Engineering • Previous Articles     Next Articles

Research on heat dissipation of lithium-ion batteries with secondary flow serpentine channel

Ya CHEN(), Liyun FAN(), Jingxue LI, Meisi LI, Chao XU, Yuanqi GU   

  1. Harbin Engineering University, Harbin 150001, Heilongjiang, China
  • Received:2023-01-06 Revised:2023-02-02 Online:2023-06-05 Published:2023-06-21
  • Contact: Liyun FAN E-mail:752909415@qq.com;fanliyun@hrbeu.edu.cn

Abstract:

A new secondary flow serpentine liquid cold plate is proposed to address the issues of high-pressure drop and significant power consumption associated with traditional serpentine channels combined with secondary flow structures. This study establishes a simulation model to compare the performance of traditional serpentine liquid cold plates and secondary flow serpentine liquid cold plates. Furthermore, the effects of factors such as channel numbers, width, angle, and distance on the secondary flow serpentine flow channel's heat transfer and pressure drop characteristics under various flow velocities are investigated. The results show that incorporating the secondary flow structure into the traditional serpentine liquid cold plate reduces the pressure drop at the inlet and outlet by 90.69%, largely resolving the issue present in traditional serpentine channels.As the flow rate increases, the cooling effect of the liquid cold plate with different structural parameters improves; once the flow rate exceeds 0.4 m/s, the maximum temperature stabilizes around 303 K, and the maximum temperature difference remains at approximately 4.5 K. Pressure drop and pump work also increase with the flow rate. Each structural parameter has an optimal value; when the number of channels is 7, the channel width is 4 mm, the channel angle is 75°, and the channel distance is 8 mm, the system's pressure drop is significantly reduced, leading to substantial pump work savings.

Key words: lithium-ion batteries, liquid cooling, serpentine channel, secondary flow

CLC Number: