Hydrogels with highly concentrated salt solution as electrolytes for solid-state supercapacitors with a suppressed self-discharge rate
Mingwei Shi, Wei Yang, Zailei Zhang, Man Zhao, Zhong Lin Wang, Xianmao Lu
Abstract
Polyacrylamide hydrogel electrolytes with highly concentrated salt solutions have been developed for solid-state supercapacitors of slow self-discharge. When the supercapacitors are charged by a triboelectric nanogenerator, a much enhanced charging efficiency has been obtained.
Topics & Concepts
SupercapacitorElectrolyteTriboelectric effectSelf-dischargeSalt (chemistry)Materials scienceChemical engineeringPolyacrylamideSelf-healing hydrogelsSolid-stateNanotechnologyChemistryElectrodeComposite materialPolymer chemistryCapacitanceOrganic chemistryPhysical chemistryEngineeringSupercapacitor Materials and FabricationAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications