三元材料锂离子电池极化电压特性研究
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摘要
为了提高SOC估算精度及优化动力电池充放电控制策略,对三元材料锂离子电池进行极化电压特性研究。通过混合脉冲功率特性测试(HPPC)实验分析了充放电过程、SOC、不同脉冲倍率和环境温度条件下极化电压的变化规律,结果表明在低SOC区间极化电压明显升高;当0.2 In order to improve the SOC estimation precision and optimize the control strategy of the lithium-ionbattery, some Hybrid Pulse Power Characterization experiments were carried out to get the laws of the variation ofthe polarization voltage in the charging-discharging process, the different SOC, the pulse rate of discharge andambient temperatures. The results show that polarization voltage increases significantly in the low SOC interval;polarization voltage is relatively stable as 0.2
引文
[1] LIU X, WU J, ZHANG C, et al. A method for state of energy esti-mation of lithium-ion batteries at dynamic currents and tempera-tures[J]. Journal of Power Sources, 2014, 270(3):151-157.
[2] DUNN J B, GAINES L, KELLY J C, et al. The significance ofLi-ion batteries in electric vehicle life-cycle energy and emissionsand recycling's role in its reduction[J]. Energy&EnvironmentalScience, 2014, 8(1):158-168.
[3] SCHMALSTIEG J, KBITZ S, ECKER M, et al. A holistic agingmodel for Li(NiMnCo)O2based 18650 lithium-ion batteries[J].Journal of Power Sources, 2014, 257(2):325-334.
[4]王永武,李杨,张娜,等.功率型磷酸铁锂材料电池与三元材料电池对比[J].电源技术,2015,39(9):1824-1825.
[5] ZHANG S S. The effect of the charging protocol on the cycle lifeof a Li-ion battery[J]. Journal of Power Sources, 2006, 161(2):1385-1391.
[6]刘浩.基于EKF的电动汽车用锂离子电池SOC估算方法研究[D].北京:北京交通大学,2010.
[7]姚雷,王震坡.锂离子电池极化电压特性分析[J].北京理工大学学报,2014,34(9):912-916.
[8]赵鹏举.车用动力电池的DP模型仿真分析及SOC估算研究[D].武汉:武汉理工大学,2015.
[9]刘秋降.基于极化电压特性锂电池优化充电研究[D].北京:北京交通大学,2014.
[10] BELT J R, HO C D, MILLER T J, et al. The effect of temperatureon capacity and power in cycled lithium ion batteries[J]. Journalof Power Sources, 2005, 142(1):354-360.
[2] DUNN J B, GAINES L, KELLY J C, et al. The significance ofLi-ion batteries in electric vehicle life-cycle energy and emissionsand recycling's role in its reduction[J]. Energy&EnvironmentalScience, 2014, 8(1):158-168.
[3] SCHMALSTIEG J, KBITZ S, ECKER M, et al. A holistic agingmodel for Li(NiMnCo)O2based 18650 lithium-ion batteries[J].Journal of Power Sources, 2014, 257(2):325-334.
[4]王永武,李杨,张娜,等.功率型磷酸铁锂材料电池与三元材料电池对比[J].电源技术,2015,39(9):1824-1825.
[5] ZHANG S S. The effect of the charging protocol on the cycle lifeof a Li-ion battery[J]. Journal of Power Sources, 2006, 161(2):1385-1391.
[6]刘浩.基于EKF的电动汽车用锂离子电池SOC估算方法研究[D].北京:北京交通大学,2010.
[7]姚雷,王震坡.锂离子电池极化电压特性分析[J].北京理工大学学报,2014,34(9):912-916.
[8]赵鹏举.车用动力电池的DP模型仿真分析及SOC估算研究[D].武汉:武汉理工大学,2015.
[9]刘秋降.基于极化电压特性锂电池优化充电研究[D].北京:北京交通大学,2014.
[10] BELT J R, HO C D, MILLER T J, et al. The effect of temperatureon capacity and power in cycled lithium ion batteries[J]. Journalof Power Sources, 2005, 142(1):354-360.