Optimization of the electrodeposition process of a polypyrrole/multi-walled carbon nanotube fiber electrode for a flexible supercapacitor
Ping Zhu, Lian Junjie, Yunchun Liu
Abstract
values were 2.74 Ω and 4.67 Ω, the specific capacitance retention rates were 94.4% and 88.3% after 1000 cycles, and the capacitance retention rates were 89.7% and 80.6% after 5000 cycles, respectively. The differences in the performances of the flexible electrodes using the same preparation solvent and different preparation processes were due to the higher deposition current density of the CC method compared with that of CV. The former enhanced the polymerization degree of the PPy/MWCNT flexible electrode and improved the electrochemical performance. The presented research results are significant for the optimization of large-scale production processes.
Topics & Concepts
SupercapacitorPolypyrroleMaterials sciencePolyacrylonitrileCyclic voltammetryElectrodeCapacitanceCarbon nanotubeHorizontal scan rateElectrochemistryComposite materialChemical engineeringFiberCoatingPolymerPolymerizationChemistryPhysical chemistryEngineeringSupercapacitor Materials and FabricationConducting polymers and applicationsAdvanced Sensor and Energy Harvesting Materials