Wet-spinning of ternary synergistic coaxial fibers for high performance yarn supercapacitors

Abstract

Graphene/CNTs/35% PEDOT:PSS@CMC (GCP-35@CMC) ternary coaxial fibers were continuously prepared through coaxial wet-spinning technology. The GCP-35@CMC-assembled flexible fiber-shaped supercapacitors (FSCs) exhibited an advanced area specific capacitance (396.7 mF cm⁻² at 0.1 mA cm⁻²) and energy density (13.8 μW h cm⁻²). This performance was ascribed to the synergistic effect of the well-designed ternary system and its special microstructures.