摘要
电动汽车在冬季会面临低温充电的问题,如何制定安全高效的低温充电策略,是我国电动汽车广泛普及需要解决的关键问题之一。针对一种根据温度和电压协同调节电流倍率的多阶段充电策略,在动力电池系统层级对其低温充电效果进行了验证。研究表明,利用温度和电压综合选择与其电化学状态相适应的充电电流,能够有效解决低温充电效率低下的问题。
Electric vehicles will face low temperature charging situation in winter.One of the key issues to be solved in the widespread popularity of electric vehicles is how to formulate a safe and efficient low-temperature charging strategy.A step charging strategy based on temperature and voltage co-regulation of current density is proposed,and its low-temperature charging effect is verified at the battery system level.Results show that by using temperature and voltage to synthetically select the charging current,the problem of low charging efficiency can be effectively solved.
作者
马绪
马天翼
陈立铎
吴昊
孙智鹏
MA Xu;MA Tian-yi;CHEN Li-duo;WU Hao;SUN Zhi-peng(Tianjin Key Laboratory of Evaluation Technology for Electric Vehicles,China Automotive Technology and Research Center Co.,Ltd,CATARC Aotomotive Test Center(Tianjin)Co.,Ltd,Tianjin 300300,China)
出处
《电源技术》
CAS
北大核心
2020年第3期377-380,共4页
Chinese Journal of Power Sources
基金
国家重点研发计划项目(2018YFB0104400)。
关键词
动力电池
低温充电
充电策略
安全性
traction batteries
low temperature charging
charging strategy
safety
