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Journal ArticleDOI

Novel electric double-layer capacitor with a coaxial fiber structure.

TLDR
A coaxial electric double-layer capacitor fiber is developed from the aligned carbon nanotube fiber and sheet, which functions as two electrodes with a polymer gel sandwiched between them.
Abstract
A coaxial electric double-layer capacitor fiber is developed from the aligned carbon nanotube fiber and sheet, which functions as two electrodes with a polymer gel sandwiched between them. The unique coaxial structure enables a rapid transportation of ions between the two electrodes with a high electrochemical performance. These energy storage fibers are also flexible and stretchable, and can be woven into and widely used for electronic textiles.

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Omnidirectional porous fiber scrolls of polyaniline nanopillars array-N-doped carbon nanofibers for fiber-shaped supercapacitors

TL;DR: In this article, a roll-up fiber scroll with outer omnidirectional porous and inner hierarchical porous structure has been fabricated as electrodes of fiber-shaped supercapacitors by polymerizing polyaniline (PANi) nanopillars onto hierarchical 3D interconnected porous N-doped carbon nanofibers scrolls.
Journal ArticleDOI

Flexible supercapacitor yarns with coaxial carbon nanotube network electrodes

TL;DR: In this article, flexible supercapacitors with yarn-like geometry were fabricated with coaxially arranged electrodes, which enabled the integration of the electronic conductor and active material of each electrode into a single component, which resulted in device volumetric energy and power densities among the highest reported for flexible carbon-based EDLCs.
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All-Solid-State Fiber-Shaped Asymmetric Supercapacitors with Ultrahigh Energy Density Based on Porous Vanadium Nitride Nanowires and Ultrathin Ni(OH)2 Nanosheet Wrapped NiCo2O4 Nanowires Arrays Electrode

TL;DR: In this paper, a flexible fiber-shaped asymmetric supercapacitor (FASC) with high energy density using vanadium nitride (VN) nanowires (NWs) on carbon nanotube fiber (CNTF) as negative electrode and ultrathin Ni(OH)2 nanosheet wrapped nickel cobalt oxide (NiCo2O4) to form a hierarchical nanowire array (HNWA) structure on CNTF as positive electrode.
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TiO2 crystalline structure and electrochemical performance in two-ply yarn CNT/TiO2 asymmetric supercapacitors

TL;DR: In this paper, a flexible asymmetric two-ply yarn supercapacitors from carbon nanotube yarns and surface-oxidized titanium filament was fabricated for wearable electronic textiles.
References
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Journal ArticleDOI

Carbon properties and their role in supercapacitors

TL;DR: Supercapacitors are able to store and deliver energy at relatively high rates (beyond those accessible with batteries) because the mechanism of energy storage is simple charge-separation (as in conventional capacitors) as discussed by the authors.
Journal ArticleDOI

Ultrahigh-power micrometre-sized supercapacitors based on onion-like carbon

TL;DR: This work demonstrates microsupercapacitors with powers per volume that are comparable to electrolytic capacitors, capacitances that are four orders of magnitude higher, and energies per volume higher than conventional supercapacitor.
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Best practice methods for determining an electrode material's performance for ultracapacitors

TL;DR: In this paper, the authors review and validate best practice test methods that accurately predict a material's performance, yet are flexible and quick enough to accommodate a wide range of material sample types and amounts.
Journal ArticleDOI

Shape-engineerable and highly densely packed single-walled carbon nanotubes and their application as super-capacitor electrodes

TL;DR: This dense carbon-nanotube material is advantageous for numerous applications, and here it is demonstrated its use as flexible heaters as well as supercapacitor electrodes for compact energy-storage devices.
Journal ArticleDOI

Macroscopic Fibers and Ribbons of Oriented Carbon Nanotubes

TL;DR: A simple method was used to assemble single-walled carbon nanotubes into indefinitely long ribbons and fibers, and the obtained elastic modulus is 10 times higher than the modulus of high-quality bucky paper.
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