摘要
研究了双电层电容器(EDLC)用离子液体1-乙基-3-甲基咪唑三氟乙酸盐[EMIm]CF3COO和30%KOH在高比表面积(3 250 m2/g)活性炭电极上的电化学性能。30%KOH的电容特性、大电流充放电性能均优于[EMIm]CF3COO,而[EMIm]CF3COO的比电容随应用电压的提高而增加,使电容器在提高功率密度的同时提高了能量密度。
The electrochemical performance of ionic liquid [ EMIm] CF3COO（ 1-ethyl - 3-methylimidazolium trifluoroacetic） and 30% KOH for electric double-layer capacitor （EDLC） on higher specific surface area （3 250 m^2/g） activated carbon electrode was investigated. The capacitance characteristics, large current charge-discharge performance of 30% KOH were better than those of [ EMIm] CF3COO, while the specific capacitance of [EMIm] CF3COO increased with the increasing of applied voltage, so that the energy density of the capacitor was increased at the same time of the increasing of power density.
出处
《电池》
CAS
CSCD
北大核心
2007年第1期12-13,共2页
Battery Bimonthly
