摘要
低温环境下,电动汽车锂离子电池存在可用容量降低、充电困难和循环寿命衰减等问题,严重制约了锂离子电池的应用,因此,确保锂离子电池在合适的温度范围内运行至关重要。电池脉冲加热技术具有加热速率快、温度均匀性好和系统结构简单等优势,是解决锂离子电池低温应用难题的有效手段。本文中从脉冲加热方案、脉冲控制参数和脉冲加热策略3个方面对脉冲加热技术的研究进展进行了综述。首先,介绍现有脉冲加热方案优劣势,其次,总结不同脉冲控制参数下锂离子电池的温升和容量衰减特性,最后,对比不同脉冲加热策略对锂离子电池低温性能的影响,指出脉冲加热技术未来发展的方向。
At low temperatures,the lithium-ion batteries of electric vehicles have the problems of usable capacity reduction,charging difficulty and cycle life decay,which seriously restrict the application of lithium-ion batteries.Therefore,it is very important to ensure that the lithium-ion batteries operate within the appropriate temperature range.With the advantages of fast heating rate,good temperature uniformity and simple system structure,the battery pulse heating technology is an effective method to solve the problem of low temperature application of the lithium-ion batteries.In this paper,the research progress of pulse heating technology is summarized from the three aspects of pulse heating schemes,pulse control parameters and pulse heating strategies.Firstly,the advantages and disadvantages of the existing pulse heating schemes are introduced.Secondly,the temperature rise and capacity decay characteristics of lithium-ion batteries under different pulse control parameters are summarized.Finally,the influence of different pulse heating strategies on the low-temperature performance of lithium-ion batteries is compared,and the future development direction of pulse heating technology is pointed out.
作者
廉玉波
凌和平
马晴婵
任强
贺斌
Lian Yubo;Ling Heping;Ma Qingchan;Ren Qiang;He Bin(BYD Automobile Industry Co.,Ltd.,Shenzhen 518118)
出处
《汽车工程》
EI
CSCD
北大核心
2023年第2期169-174,共6页
Automotive Engineering
基金
国家重点研发项目(2021YFB2501700)资助。
关键词
锂离子电池
低温性能
脉冲加热
脉冲参数
lithium-ion battery
low temperature performance
pulse heating
pulse parameters
