作者：Libin Chen, Yan ru Chen, Jifeng Wu , Jianwei Wa ng, Hua Bai* and Lei Li*
关键字：electrochemical supercapacitor, energy retention
论文来源：期刊
具体来源：Journal of Materials Chemistry A
发表时间：2014年
An electrochemical supercapacitor with a polymeric active electrolyte was designed and fabricated in this work. A water-soluble conducting polymer, sulfonated polyaniline (SPAni), was used in the supercapacitor as the active electrolyte and a semipermeable membrane was employed as the separator of the device. It was found that SPAni in the electrolyte can provide pseudocapacitance via its reversible electrochemical
redox reaction. Owing to the good stability of SPAni, the supercapacitor has a long cycling life.Moreover, the migration of SPAni between the two electrodes was blocked by the semipermeable membrane separator, thus self-discharge caused by the shuttle effect of SPAni was suppressed. The research in this paper demonstrates the possibility of using a polymer as the active electrolyte in a supercapacitor and has paved a new way to achieve active electrolyte enhanced supercapacitors with high capacitance and good energy retention.