Hierarchical Lignin-Based Carbon Matrix and Carbon Dot Composite Electrodes for High-Performance Supercapacitors
Lu Yu, Chien‐Te Hsieh, David J. Keffer, Hao Chen, Gabriel A. Goenaga, Sheng Dai, Thomas A. Zawodzinski, David P. Harper
Abstract
with CD addition. The SC with CD addition possesses improved cycle stability with a coulombic efficiency around 100% after 3000 cycles. After cycling, the ion diffusion coefficient of the CD@AC-11 electrode is enhanced by 25.5 times as compared to that of the pristine AC one. This unique and robust carbon framework can be utilized for engineering the desired pore structure and micropore/mesopore fraction within the AC electrodes. This strategy of CD@AC electrodes demonstrates a promising route for using renewable porous carbon materials in advanced energy-storage devices.
Topics & Concepts
SupercapacitorComposite numberCarbon fibersMaterials scienceLigninElectrodeMatrix (chemical analysis)Chemical engineeringNanotechnologyComposite materialElectrochemistryChemistryOrganic chemistryEngineeringPhysical chemistrySupercapacitor Materials and FabricationAdvancements in Battery MaterialsElectrochemical sensors and biosensors