A novel bilayer heterogeneous poly(ionic liquid) electrolyte for high-performance flexible supercapacitors with ultraslow self-discharge
Keyi Dong, Yanan Liu, Zilin Chen, Tian Lv, Weiyang Tang, Shaokui Cao, Tao Chen
Abstract
, which are comparable with those of devices obtained by using a homogeneous poly(ionic liquid) electrolyte (HPE). More significantly, the developed BHPE-based supercapacitor charged under forward bias exhibits a self-discharge time of 23.2 h, which is at least twice that of the device charged under reverse bias and is also much superior to those of HPE-based supercapacitors. The BHPE-based supercapacitors also possess excellent mechanical flexibility and stability, due to the stabilized interface contact between two layers of poly(ionic liquid)s.
Topics & Concepts
ElectrolyteSupercapacitorIonic liquidBilayerMaterials scienceIonic bondingChemical engineeringNanotechnologyMembraneElectrodeElectrochemistryChemistryIonPhysical chemistryOrganic chemistryEngineeringCatalysisBiochemistrySupercapacitor Materials and FabricationAdvanced battery technologies researchConducting polymers and applications