锂离子电容器直流内阻测试方法研究  

Study on the measurement methods for the DC internal resistance of lithium-ion capacitors

作　　者：王婧 高洪波[3] 胡道中[3] 魏三平 郑丽花 赵云鹏 钟明 BURKE Andrew F 李灵宏 WANG Jing;GAO Hongbo;HU Daozhong;WEI Sanping;ZHENG Lihua;ZHAO Yunpeng;ZHONG Ming;BURKE Andrew F;LI Linghong(DAE Innovation（Beijing）Technologies,Inc.,Beijing 100071,China;Shanxi DAE Technologies,Inc.,Changzhi 046000 Shanxi,China;China North Vehicle Research Institute,Beijing 100072,China;ChangzhiInstitute of Scientific and Technical Information,Changzhi 046000,Shanxi,China;University of California Davis,Davis,CA 95616)

机构地区：[1]德益创新(北京)科技有限公司,北京100071 [2]山西德益科技有限公司,山西长治046000 [3]中国北方车辆研究所,北京100072 [4]长治市科技情报研究所,山西长治046000 [5]University of California Davis,Davis,CA95616

出　　处：《储能科学与技术》2018年第6期1242-1247,共6页Energy Storage Science and Technology

基　　金：山西省科技厅重点研发计划(03012015005)

摘　　要：直流内阻(简称"内阻")是衡量超级电容器性能最重要的电化学参数之一,但目前尚未有统一的测试方法用于锂离子电容器的内阻测试。本工作使用不同的充放电测试程序,采用不同的内阻计算方法来评测比较锂离子电容单体样品的内阻值。结果表明,不同的充放电测试方法、不同的放电截止电压、不同的内阻计算方法,影响锂离子电容器内阻测量值。以100 ms压降法计算的内阻可能接近放电开始阶段的稳态内阻,可以使用普通国产电池测试设备,简单、易行、可靠,经进一步的验证后,可以考虑推广使用。Lithium-ion capacitor （LIC） is a new energy storage device that combines the advantages of lithium-ion battery and supercapacitor. Internal resistance under direct current （DC Resistance or DCR） is one of the most important electrochemical parameters for evaluating the performance of supereapacitors. However, there is no standard method for measuring and evaluating the internal resistance of LIC. This study tested and compared LIC devices using three different testing procedures and calculation methods for DCR. Comparison of internal resistance using initial voltage drop at 100ms to that of other methods indicates that this method provides consistent results and the value of resistance may be close to the true stead-state resistance.

关 键 词：锂离子电容器 内阻 充放电测试程序 计算方法 截止电压 

分 类 号：O484.5[理学—固体物理] O433.4[理学—物理]