环境温度对软包装超级电容器性能的影响

Effects of ambient temperature on the performance of soft pack supercapacitor

对以活性炭为正负极活性材料的软包装超级电容器进行一系列高低温(-20℃、0℃、20℃、40℃和60℃)测试,研究环境温度对软包装超级电容器电化学性能的影响。当环境温度为40~60℃时,超级电容器可表现出更好的电化学性能;当环境温度为40℃时,具有相对最佳的电化学性能,可在38.11 Wh/kg比能量下提供283.5 W/kg的比功率。

To study the effects of ambient temperature on the electrochemical performance of soft pack supercapacitor,a series of high and low temperature(-20℃,0℃,20℃,40℃and 60℃)tests were carried out on the soft pack supercapacitors with activated carbon as cathode and anode active materials.When the ambient temperature was 40-60℃,the supercapacitor showed better electrochemical performance.When the ambient temperature was 40℃,it exhibited relatively optimal electrochemical performance,could provide a specific power of 283.5 W/kg at a specific energy of 38.11 Wh/kg.