摘要
研究了不同浓度1-乙基-3-甲基咪唑双三氟甲磺酰亚胺盐/碳酸丙烯酯(Emim-TFSI/PC)溶液作为超级电容器电解液在不同温度下的电化学性能,探究其在高温应用的可能。测试结果表明:当温度低于60℃,不同浓度的Emim-TFSI/PC电解液电化学性能接近,且电解液的浓度越高倍率性能越好;当温度高于80℃时,纯Emim-TFSI离子液体电解液的电化学性能最优,具备成为高性能超级电容器高温电解液的应用潜力。
The electrochemical properties of different concentrations of 1-ethyl-3-methylimidazolium trifluoromethanesulfonimide salt/propylene carbonate(Emim-TFSI/PC) solution as supercapacitor electrolytes at different temperatures were investigated. It is possible to apply at high temperatures. The test results indicate that when the temperature is lower than 60 ℃, the electrochemical performance of the electrolyte with different solvent and electrolyte ratio is close, and the higher the concentration of the electrolyte, the better the rate performance;when the temperature is higher than 80 ℃, the pure ionic liquid electrolyte has the best electrochemical performance and has the potential to become a high-performance electrolyte for high-performance supercapacitors.
作者
于学文
顾应展
乔志军
阮殿波
王成扬
YU Xue-wen;GU Ying-zhan;QIAO Zhi-jun;RUAN Dian-bo;WANG Cheng-yang(Key Laboratory for Green Chemical Technology of Ministry of Education,Tianjin University,Tianjin 300072,China;Ningbo CRRC New Energy Technology Co.,Ltd.,Ningbo Zhejiang 315112,China)
出处
《电源技术》
CAS
北大核心
2020年第2期209-213,共5页
Chinese Journal of Power Sources
基金
工业强基项目(0714-EMTC02-5593/5)
关键词
超级电容器
离子液体
高温
介孔炭
supercapacitor
ionic liquid
high temperature
mesoporous carbon