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新能源汽车浸没式锂离子电池冷却技术研究进展
0
(1.上海理工大学能源与动力工程学院;2.上海理工大学机械工程学院)
摘要:
浸没式电池冷却是将电池直接浸泡于冷却液中,相比常规间接式液冷、风冷和相变冷却,具有结构简单、降温迅速、均温性能好等优势。对目前浸没式电池冷却的相关技术进行了统计、归纳和总结,包括浸没液采选、冷却系统结构设计、热安全等,并结合上述工作对浸没式电池冷却系统的技术应用进行分析。结果表明:浸没式冷却可快速降低电池温度,能够有效提升电池组的温度均一性;但该技术对电池模组的密封性要求较高,漏液以及腐蚀等难题有待解决。
关键词:  新能源汽车  浸没式电池冷却  电池热管理  浸没液
DOI:
投稿时间:2023-03-27  修订日期:2023-07-03   录用日期:2023-08-03
基金项目:国家自然科学基金(5220061362)和中国博士后科学基金(2021M702191),上海市超级博士后激励计划项目(273794)资助项目。
Research Progress of Immersed Cooling Technology for Lithium-ion Batteries in New Energy Vehicles
Li Zhe1, Zhang Hua2, Sheng Lei2,3
(1.College of energy and power Engineering, University of Shanghai for Science and Technology;2.College of energy and power engineering, University of Shanghai for Science and Technology;3.College of Mechanical engineering, University of Shanghai for Science and Technology)
Abstract:
Immersion battery cooling involves immersing the battery directly in a coolant and has the advantages of a simple structure, rapid cooling, and better temperature uniformity than conventional indirect liquid cooling, air cooling, and two-phase cooling. This study summarizes the relevant technologies for immersion battery cooling, including screening of immersion liquid, cooling system structure design, and thermal safety, and then analyzes the technical applications of the immersion battery cooling system based on this work. The results show that immersion cooling can rapidly reduce the battery temperature and effectively improve the temperature uniformity of the battery pack. However, this technology requires a high sealing performance of battery modules, and challenges such as leakage and corrosion need to be addressed.
Key words:  new energy vehicles  immersion battery cooling  battery thermal management  immersion fluids

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