Nanohybridization of Ni–Co–S Nanosheets with ZnCo<sub>2</sub>O<sub>4</sub> Nanowires as Supercapacitor Electrodes with Long Cycling Stabilities
Meizhen Dai, Depeng Zhao, Hengqi Liu, Xiaofei Zhu, Xiang Wu, Bao Wang
Abstract
Hybrid structured electrode materials for supercapacitors have attracted enormous interest. However, the rational design of electrode materials with high conductivity and energy density is still a challenge for energy storage devices. Herein, ZnCo2O4@Ni–Co–S composites are prepared through a simple electrochemical process. Due to the high structural stability, the products show excellent specific capacitance. Furthermore, the device delivers an energy density of 53.1 Wh kg–1 at a power density of 3375 W kg–1 and demonstrates excellent cycle stability.
Topics & Concepts
SupercapacitorMaterials scienceCapacitanceElectrodePower densityElectrochemistryEnergy storageNanowireNanotechnologyElectrochemical energy storageChemical engineeringConductivityEnergy densityCurrent densityPower (physics)Engineering physicsChemistryPhysical chemistryQuantum mechanicsEngineeringPhysicsSupercapacitor Materials and FabricationAdvanced battery technologies researchAdvancements in Battery Materials