Ultra-long cycle life and binder-free manganese-cobalt oxide supercapacitor electrodes through photonic nanostructuring
Madhu Gaire, Binod Subedi, Shiva Adireddy, Douglas B. Chrisey
Abstract
constant areal current density for 80 000 cycles, and the electrode showed 95% specific capacitance retention, exhibiting excellent electrochemical stability and an ultra-long cycle life. Such remarkable electrochemical performance could be attributed to the enhanced conductivity of the electrode, the synergistic effect of metal ions with rGO, and the highly porous morphology, which provides large specific surface area for electrode/electrolyte interaction and facilitates the ion transfer.
Topics & Concepts
Materials scienceSupercapacitorElectrodeElectrochemistryCyclic voltammetryElectrolyteCobalt oxideChemical engineeringRedoxOxideNanotechnologyChemistryMetallurgyPhysical chemistryEngineeringSupercapacitor Materials and FabricationAdvanced battery technologies researchElectrochemical sensors and biosensors