A flexible and stable zinc-ion hybrid capacitor with polysaccharide-reinforced cross-linked hydrogel electrolyte and binder-free carbon cathode
Juntao Gao, Fengjiao Guo, Chenchen Ji, Xiaojun He, Hongyu Mi, Jieshan Qiu
Abstract
A flexible and stable zinc-ion hybrid capacitor has been fabricated with a polysaccharide-reinforced hydrogel electrolyte and binder-free carbon fabric cathode, and displays an impressive cycling performance with a capacity retention of 93.5% over 10 000 cycles as well as high energy/power density of 113.2 W h kg −1 /15752.4 W kg −1 .
Topics & Concepts
ElectrolyteCathodeMaterials scienceSupercapacitorZincCapacitorCarbon fibersChemical engineeringPower densityComposite materialElectrodeChemistryElectrochemistryMetallurgyPower (physics)VoltageComposite numberElectrical engineeringPhysicsPhysical chemistryEngineeringQuantum mechanicsAdvanced battery technologies researchSupercapacitor Materials and FabricationAdvanced Battery Materials and Technologies