Development of Supercapacitor Electrodes with High Strength via Inkjet Printing of Reduced Graphene Oxide/Aramid Nanofibers Membranes

Supercapacitors (SCs), as emerging electrochemical energy storage devices, have garnered widespread attention due to their rapid charge–discharge characteristics and high power density. With the growing demand for electronic devices and the diversification of applications in daily life scenarios, SC...

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Bibliographic Details
Published in:Fibers and polymers 2024, 25(11), , pp.4215-4226
Main Authors: Tan, Xiaodong, Peng, Qingyan, Stempień, Zbigniew, Saskova, Jana, Venkataraman, Mohanapriya, Wiener, Jakub, Militky, Jiri
Format: Article
Language:English
Subjects:
Charge density
Charge efficiency
Chemistry
Chemistry and Materials Science
Current density
Discharge
Electrochemical analysis
Electronic devices
Electrons
Flux density
Graphene
Inkjet printing
Mechanical properties
Modulus of elasticity
Polymer Sciences
Portable equipment
Regular Article
Supercapacitors
Tensile strength
섬유공학
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Summary:Supercapacitors (SCs), as emerging electrochemical energy storage devices, have garnered widespread attention due to their rapid charge–discharge characteristics and high power density. With the growing demand for electronic devices and the diversification of applications in daily life scenarios, SCs with outstanding flexibility, mechanical and electrochemical performance are becoming increasingly important. In this study, an in situ reduction method was employed, utilizing inkjet printing technology to deposit reduced graphene oxide (rGO) onto the prepared aramid nanofibrous (ANFs)/PVDF/PVA composite film for the fabrication of solid-state SCs. The optimized ANFs/PVDF/PVA composite film exhibited a tensile strength and Young's modulus of 185 N and 760 MPa, respectively. Even in a bent state, the cyclic voltammetry (CV) curves remained essentially unchanged. At a current density of 0.1 A/g, the specific capacitance and energy density reached 120.9 F/g and 10.8 Wh/kg, respectively, while at a current density of 0.5 A/g, the power density reached 3201 W/kg. After 5000 charge–discharge cycles, the efficiency maintained above 90%. Such exceptional electrochemical and mechanical performance provides more options for the manufacturing of next-generation portable and wearable electronic devices.
ISSN:1229-9197
1875-0052
DOI:10.1007/s12221-024-00754-7