High-performance compressible supercapacitors based on functionally synergic multiscale carbon composite textiles

Dong, Liubing; Xu, Chengjun; Yang, Qian; Fang, Jianzhang; Li, Yang; Kang, Feiyu

doi:10.1039/c4ta06494a

Cited by 85 publications

(59 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the aim to balance the electrochemical/mechanical properties, and the processing technologies during EDLC design, a strong research effort has been focused on the search for carbon‐based active materials alternative to ACs . Among them, graphene is one of the most promising, due to its physical and chemical properties, i. e ., charge carriers mobility (>2000 cm 2 V −1 s −1 on SiO 2 substrates), theoretical specific surface area (∼2600 m 2 g −1 ) and excellent mechanical properties (Young module of ∼1 TPa) and elastic limit (∼20 %) .…”

Section: Introductionmentioning

confidence: 99%

Flexible Graphene/Carbon Nanotube Electrochemical Double‐Layer Capacitors with Ultrahigh Areal Performance

et al. 2019

View full text Add to dashboard Cite

The fabrication of electrochemical double‐layer capacitors (EDLCs) with high areal capacitance relies on the use of elevated mass loadings of highly porous active materials. Herein, we demonstrate a high‐throughput manufacturing of graphene/carbon nanotubes hybrid EDLCs. The wet‐jet milling (WJM) method is exploited to exfoliate the graphite into single‐few‐layer graphene flakes (WJM‐G) in industrial volumes (production rate ca. 0.5 kg/day). Commercial single‐/double‐walled carbon nanotubes (SDWCNTs) are mixed with graphene flakes in order to act as spacers between the flakes during their film formation. The WJM‐G/SDWCNTs films are obtained by one‐step vacuum filtration of the material dispersions, resulting in self‐standing, metal‐ and binder‐free flexible EDLC electrodes with high active material mass loadings up to around 30 mg cm−2. The corresponding symmetric WJM‐G/SDWCNTs EDLCs exhibit electrode energy densities of 539 μWh cm−2 at 1.3 mW cm−2 and operating power densities up to 532 mW cm−2 (outperforming most of the reported EDLC technologies). The EDCLs show excellent cycling stability and outstanding flexibility even in highly folded states (up to 180°).

show abstract

Section: Introductionmentioning

confidence: 99%

Flexible Graphene/Carbon Nanotube Electrochemical Double‐Layer Capacitors with Ultrahigh Areal Performance

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Considering that the key to fabricating FSCs generally lies in the acquirement of appropriate flexible electrodes (FEs), many researchers have devoted their efforts to the design of high performance FEs. According to their micro-structures and macroscopic patterns, the commonly reported FEs/FSCs are fiber-shaped, paper-like and three-dimensional (3D) porous FEs/FSCs, respectively [27][28][29]. Being different from paper-like and 3D porous FSCs, fiber-shaped FSCs are featured with a great flexibility and mechanical strength and thus exhibit unique and promising application prospect that they could be woven or knitted into fabrics/textiles to further produce wearable and smart clothes [30,31].…”

Section: Introductionmentioning

confidence: 99%

Flexible all-solid-state micro-supercapacitor based on Ni fiber electrode coated with MnO2 and reduced graphene oxide via electrochemical deposition

Zhou

Chen

et al. 2018

Sci. China Mater.

View full text Add to dashboard Cite

show abstract

“…The specific capacitance calculated from charging and discharging time is convenient for further analysis of the rate performance of the conductive hydrogel [34]. Figure 6c shows that the specific capacitance of PASH rises first and then decreases as the number of freeze‐thaw cycles increases.…”

Section: Resultsmentioning

confidence: 99%

Polyaniline/Poly(acrylamide‐co‐sodium acrylate) Porous Conductive Hydrogels with High Stretchability by Freeze‐Thaw‐Shrink Treatment for Flexible Electrodes

Zhang

Dong

Qiuyue

et al. 2020

Macro Materials & Eng

View full text Add to dashboard Cite

With the development of alternatives to traditional fossil energy and the rise of wearable technology, flexible energy storage devices have attracted great attention. In this paper, a polyaniline/poly(acrylamide‐sodium acrylate copolymer) hydrogel (PASH) with high flexibility and excellent electrochemical properties for flexible electrodes is fabricated by freeze‐thaw‐shrink treatment of a highly water‐absorptive hydrogel, together with in‐situ polymerization of aniline at a low aniline concentration (0.1 mol L−1). The PASH exhibits a conductivity of 4.05 S m−1 and an elongation at break of 1245%. The freeze‐thaw‐shrink treatment greatly improves the electrochemical performance and stability of the conductive PASH. The area specific capacitance of PASH reaches 849 mF cm−2 and the capacitance maintains 89% after 1000 galvanostatic charge–discharge cycles. All the raw materials are conventional industrialized materials and no additional templating agent is needed during the entire synthesis process. This study provides a cost‐efficient approach for the fabrication of conductive polymer hydrogels, which has a broad application prospect in flexible energy storage electronic devices.

show abstract

High-performance compressible supercapacitors based on functionally synergic multiscale carbon composite textiles

Abstract: The functional synergy between body material and carbon nano-fillers leads to the outstanding electrochemical performances of composite textiles.

Cited by 85 publications

References 50 publications

Flexible Graphene/Carbon Nanotube Electrochemical Double‐Layer Capacitors with Ultrahigh Areal Performance

Flexible Graphene/Carbon Nanotube Electrochemical Double‐Layer Capacitors with Ultrahigh Areal Performance

Flexible all-solid-state micro-supercapacitor based on Ni fiber electrode coated with MnO2 and reduced graphene oxide via electrochemical deposition

Polyaniline/Poly(acrylamide‐co‐sodium acrylate) Porous Conductive Hydrogels with High Stretchability by Freeze‐Thaw‐Shrink Treatment for Flexible Electrodes

Contact Info

Product

Resources

About