动力型双电层电容器过载使用的性能  

Performance research of power type electric double-layer capacitor in overload

作　　者：乔志军 张希 陈雪龙 于学文 屠建飞[2] 阮殿波 QIAO Zhijun;ZHANG Xi;CHEN Xuelong;YU Xuewen;TU Jianfei;RUAN Dianbo(Ningbo CRRC New Energy Technology Co.,Ltd.,Ningbo 315112,Zhejiang,China;Ningbo University,Ningbo 315112,Zhejiang,China)

机构地区：[1]宁波中车新能源科技有限公司,浙江宁波315112 [2]宁波大学,浙江宁波315112

出　　处：《储能科学与技术》2021年第4期1439-1445,共7页Energy Storage Science and Technology

基　　金：国家自然科学基金项目(22078164);山西省关键核心技术和共性技术研发攻关专项项目(20201102018);宁波市科技创新2025重大专项项目(2019B10045,2019B10109)。

摘　　要：采用过流、过压、短路放电、高低温的过载方法,研究了过载对有轨电车用动力型双电层电容器的性能影响。结果表明:双电层电容器单体在充放电的平均电流相同条件下循环测试,单体的电化学性能保持一致。平均电流大于额定电流时,单体产热量大,容易造成漏液。单体可进行短路放电,瞬时短路放电电流为6200 A,且单体不会损坏。在额定电流持续充电条件下,充电时间达到1000 s后,外壳爆裂,发生燃烧,而停止充电后燃烧现象迅速熄灭,不具备持续燃烧的性质,不发生爆炸。单体可耐3.0 V高压。在-45~65℃范围内,单体均可使用,温度越低(≥-45℃),单体可发挥的性能越优。Effect of overload on the performance of power-type electric double-layered capacitors used for trams is studied via overcurrent, overvoltage, short-circuit discharge,and high-and low-temperature tests. The results show that the electrochemical properties of electric double-layered capacitor cells remain consistent after cycling at the same charging and discharging current. When average current is greater than rated current, a cell produces more heat than usual, which can easily cause electrolyte leakage. The cell can be discharged at a short-circuit current without damage while the instantaneous short-circuit discharge current is 6200 A. The cell shell bursts and burns after charging for 1000 s at the rated current, but the burning phenomenon is quickly extinguished after charging is stopped.Continuous combustion does not occur and the cell does not explode. The high withstand voltage of the cell is 3.0 V. The monomers can be used in the temperature range of-45 ℃ to approximately 65 ℃. As temperature decreases(≥-45 ℃), the performance of a cell improves.

关 键 词：双电层电容器 过压 过流 短路 

分 类 号：TM53[电气工程—电器]