锂离子动力电池脉冲快速充电实验研究
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摘要
为了满足电动车用锂离子动力电池快速高效充电的要求,根据马斯三定律提出了一种大电流带负脉冲充电方法作为电池的快速充电方式。通过大量实验,证实了带负脉冲形式的大电流脉冲充电是一种能明显减小极化效应、缩短充电时间、快速高效的充电方式,并且通过实验确定了放电负脉冲的幅值和宽度最佳值。结合放电负脉冲参数值对10Ah/3.2 V锂离子动力电池进行充电实验,在充电量不低于90%的前提下,比常规大电流恒流充电速度提高了32.85%,达到了快速高效充电的目的。
In order to achieve the requirements for quickly and efficiently charging of lithium-ion battery used in electric vehicle,according to Mas three laws,the high current charging method with negative pulse was introduced as one of the fast charging methods.A great number of tests show this charging method can effectively eliminate polarization effects and shorten the charging time.The optimal value of the amplitude and the width for the discharge negative pulse is determined.The charging experiments were conducted for the 10 Ah/3.2 V lithium-ion battery by using the parameters of the discharge negative pulse.The results show that the speed increases by 32.85%compared with conventional high-current constant current charging in 90% of the amount of charge provided,achieving the purpose of fast and efficient charge.
In order to achieve the requirements for quickly and efficiently charging of lithium-ion battery used in electric vehicle,according to Mas three laws,the high current charging method with negative pulse was introduced as one of the fast charging methods.A great number of tests show this charging method can effectively eliminate polarization effects and shorten the charging time.The optimal value of the amplitude and the width for the discharge negative pulse is determined.The charging experiments were conducted for the 10 Ah/3.2 V lithium-ion battery by using the parameters of the discharge negative pulse.The results show that the speed increases by 32.85%compared with conventional high-current constant current charging in 90% of the amount of charge provided,achieving the purpose of fast and efficient charge.
引文
[1]何秋生,徐磊,吴雪雪.锂电池充电技术综述[J].电源技术,2013,37(8):1464-1466.
[2]张彦琴,刘汉雨,卢明哲.锂离子电池充电方法及其评价指标[J].电池工业,2013,18(3/4):99-102.
[3]王鸿雁,李广凯,江政昕,等.锂离子电池快速充电方法研究[J].电源技术,2012,36(11):1616-1619.
[4]郭毅锋,王志福,黄丽敏.矿用铅酸动力电池带负脉冲放电的快速充电方法研究[J].煤矿机械,2012,33(9):75-77.
[2]张彦琴,刘汉雨,卢明哲.锂离子电池充电方法及其评价指标[J].电池工业,2013,18(3/4):99-102.
[3]王鸿雁,李广凯,江政昕,等.锂离子电池快速充电方法研究[J].电源技术,2012,36(11):1616-1619.
[4]郭毅锋,王志福,黄丽敏.矿用铅酸动力电池带负脉冲放电的快速充电方法研究[J].煤矿机械,2012,33(9):75-77.