Research on high-precision survey of supercapacitor capacity
High-precisely and quickly measuring supercapacitor capacitance is necessary to improve the performance and quality of super capacitors, to decrease capacitance deviation and to enhance reliability and life expectancy of groups of supercapacitor. Based on the equivalent model of supercapacitor, using the measuring method of direct and constant current charging and discharging, time of measurement was shortened by means of larger, direct and constant current discharging; applying discrete sum of software , the requirement of constant current was debased and accuracy was maintained; because of environmental temperatures influence, the errors resulting from temperature variations of environment was lowered by corresponding compensation process .After measurement comparison experiments, the results show that capacitance error is less than 0.5F by measuring 350F supercapacitor. The requirement of measurement can be met
supercapactior capacitance deviation direct and constant current discrete sum environmental temperature
Jijie Shi Ying Zhong Xinghua Li
State Key Laboratory of Precision Measuring Technology and Instruments Tianjin University Tianjin, China
国际会议
杭州
英文
599-602
2011-10-28（万方平台首次上网日期，不代表论文的发表时间）