摘要
通过可控温湿度实验箱和放电电流控制器模拟锂离子电池在实际应用中可能遇到的不同工作环境,对单体LiFePO4锂离子电池进行了放电实验,对电池工作电压、放电时间和放电量等工作特性进行了分析,得出电池放电性能随放电电流、温度和湿度变化的规律。其中放电电流对电池放电性能影响最大,环境湿度影响不大。综合分析可知,有效地控制锂离子电池的工作环境,可提高电池的放电性能,改善电动汽车的动力性和续驶里程。
Series working environment of lithium-ion battery were simulated by temperature-controlled test-box and discharge current controller.The discharge performance of single LiFePO4 battery was tested,and its operating voltage,discharge time and capacity were analyzed.The results show that the discharge performance changes with discharge current,temperature and humidity;the discharge current has the greatest influence on curves of discharge time and capacity;the influence of the environment humidity is not very seriously.It can be concluded that the effective control of the working environment of the lithium-ion battery can improve its discharge performance,and ameliorate the electric vehicle dynamic property and driving range.
出处
《电源技术》
CAS
CSCD
北大核心
2013年第3期372-375,共4页
Chinese Journal of Power Sources
基金
江西省科技厅科技支撑项目(ZDG02100)
江西省科技支撑计划项目(20112BBE50002)
国家大学生创新性实验计划(101040319)
关键词
电动汽车
锂离子电池
工作环境
放电性能
动力性
续驶里程
electric vehicle
lithium-ion battery
working environment
discharge performance
dynamic property
driving rang
