高功率型镍氢动力电池内阻测试方法研究  

STUDY ON POWER BATTERY INTERNAL RESISTANCE MEASUREMENT METHODS

作　　者：赵淑红[1,2] 吴锋[1] 王子冬[2] 高飞[3] 

机构地区：[1]北京理工大学化工与环境学院,北京100081 [2]中国北方车辆研究所国家863动力电池检测基地,北京100072 [3]北京科技大学冶金与生态学院,北京100083

出　　处：《矿冶》2010年第1期57-61,共5页Mining And Metallurgy

摘　　要：使用6.5Ah/1.2V（国产）、8.5Ah/12V（国外）两种功率型镍氢动力电池作为内阻研究对象,不同内阻测试方法（DCR法、HPPC法、脉冲充放电法）的结果差异表明：HPPC方法内阻值高于Mccf方法,DCR方法内阻值在30%-70%的SOC状态时接近Mccf方法。DCR和HPPC方法能同时计算电池放电内阻和充电（再生）内阻,可以得到SOC范围较宽的电池内阻,Mccf方法由于定义限制,仅能计算出30%-70%SOC之间的充电内阻。作者建议：根据DCR和HPPC两种内阻测试方法的特点,采用中低倍率系列电流及高倍率大电流综合的方法确定电池内阻。The resistances of two types of high-power Ni/MH battery which were 6.5Ah /1.2V（domestic）,8.5Ah/12V（foreign）are measured for the purpose of comparing difference of results caused by various methods.Experimental results show that the results calculated by HPPC is higher than the data measured by mccf which is near the DCR result between 30%～70% soc.Using DCR and HPPC can simultaneously achieve discharge and regenerative resistance at wide range of soc.The mccf method can only measure discharge resistance between 30%～70% soc.The author propose combining the DCR and HPPC methods,medi/low rate series current and high rate current can be used to calculate dis/reg.resistance.

关 键 词：高功率型镍氢电池 电池内阻 电压-电流特性 

分 类 号：TM911[电气工程—电力电子与电力传动]