Energy Storage Science and Technology ›› 2021, Vol. 10 ›› Issue (6): 2269-2282.doi: 10.19799/j.cnki.2095-4239.2021.0156

• Energy Storage System and Engineering • Previous Articles     Next Articles

Review on heat dissipation methods of lithium-ion power battery for vehicles under service conditions

Feifei LIU1(), Rongqing BAO1, Xianfu CHENG1, Jun LI1, Wu QIN1, Chaofeng YANG2   

  1. 1.School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, Jiangxi, China
    2.Anhui Zhongding Shock Absorbing Rubber Technology Co. Ltd. , Xuancheng 242399, Anhui, China
  • Received:2021-04-13 Revised:2021-05-18 Online:2021-11-05 Published:2021-11-03
  • Contact: Feifei LIU E-mail:daisy-lff@163.com

Abstract:

As the electric vehicle (EV) becomes more popular, the lithium-ion (Li-ion) power cell has become the primary power source for EVs, but thermal safety issues are becoming more prevalent. Based on this, battery cooling methods such as air cooling, liquid cooling, and phase change material cooling are introduced to address the severe thermal problems such as poor safety, unreliable operation, and short cycle life of Li-ion power batteries for EVs under service conditions, particularly at high temperatures. Furthermore, a thermal management system coupled with multi-cooling methods to improve heat dissipation efficiency than a single heat dissipation method is illustrated, which can improve the heat dissipation efficiency and improve the temperature uniformity of the battery. Furthermore, the optimization of air cooling channels, design of liquid cooling structure and analysis of cooling medium, application characteristics of phase change materials, cooling characteristics, and thermal characteristics of heat pipes are summarized in detail in conjunction with the research progress and key technologies of the aforementioned heat dissipation methods. Finally, to address the issues that exist in the current heat dissipation methods of power batteries, the battery thermal management system (BTMS) is proposed by combining it with the car occupant heat comfort, motor cabin heat management, and vehicle thermal environment to form a vehicle heat management system that will serve as a reference for future research on the design and development of BTMS.

Key words: lithium-ion power battery, thermal safety problem, thermal management, cooling method

CLC Number: