A Knittable Fibriform Supercapacitor Based on Natural Cotton Thread Coated with Graphene and Carbon Nanoparticles

Ye, Xingke; Zhou, Qianlong; Jia, Chunyang; Tang, Zhonghua; Wan, Zhongquan; Wu, Xiaodong

doi:10.1016/j.electacta.2016.04.100

Cited by 52 publications

(31 citation statements)

References 55 publications

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“…[ 103 ] Furthermore, the CV curves exhibit near mirror‐image symmetry with rapid current responses, demonstrating the desirable fast charge‐discharge property and ideal capacitive behaviors for power devices. [ 123–125 ] The GCD curves of CNFs/RGO@PPy‐2 FSCs in Figure 5b resemble a symmetric triangle without any apparent voltage drop in the potential window of 0–0.8 V at different current densities from 0.1 to 1.0 mA cm −2 , demonstrating good charge transmission across the microfibers and relatively high coulombic efficiency. [ 126,127 ] CNFs/RGO@PPy‐2 FSCs demonstrate a high C A of 719 mF cm −2 at the current density of 0.1 mA cm −2 calculated by the GCD curves, corresponding to the C L of 6.78 mF cm −1 and the C V of 960 F cm −3 .…”

Section: Resultsmentioning

confidence: 99%

Core–Shell Structured Cellulose Nanofibers/Graphene@Polypyrrole Microfibers for All‐Solid‐State Wearable Supercapacitors with Enhanced Electrochemical Performance

Chen

2020

Macro Materials & Eng

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Thanks to their considerable electrochemical and mechanical properties, fiber‐shaped supercapacitors have become the most potential energy storage devices for portable and wearable electronics in the future; however, challenges still exist in the pursuit of practical applications among them. In this work, ternary microfibers, which are composed of TEMPO‐oxidized cellulose nanofibers/reduced graphene oxide microfiber cores coated with polypyrrole shell layers, are successfully fabricated through industrializable and sustainable wet‐spinning and interfacial polymerization strategies. The prepared microfibers possess well‐defined microstructures and outstanding mechanical properties (559 MPa). When assembled into symmetrical all‐solid‐state fiber‐shaped supercapacitors (FSCs), they exhibit remarkable electrochemical properties (647 mF cm−2, 14.37 µWh cm−2 at 0.1 mA cm−2), prominent cycling stability (92.5% capacitance retention and 92.6% coulomb efficiency after 10 000 cycles), and extraordinary flexibility (no significant decay in capacitance after 5000 bending cycles), which are superior to all the congeneric FSCs reported to date. The prominent performances are ascribed to the synergistic effect of the well‐designed ternary system and synergistic effects between interior components. The advantages in electrochemical, mechanical, and industrial properties of the ternary FSCs can provide reference and boost the development of flexible energy storage applications.

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Section: Resultsmentioning

confidence: 99%

Core–Shell Structured Cellulose Nanofibers/Graphene@Polypyrrole Microfibers for All‐Solid‐State Wearable Supercapacitors with Enhanced Electrochemical Performance

Chen

2020

Macro Materials & Eng

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“…However, the assembled supercapacitors were relatively bulky and costly as the metal wires were utilized. Considering that wearable electronics require excellent durability and fabric‐like wearable comfort, fabrics would be a normal choice for being used as substrates . Among all kinds of commercial fabrics, poly(ethylene terephthalate (PET) is commonly used in clothing because of its economic value, chemical resistance, shrinkage resistance, good strength, consistency in quality, and ready availability .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Zhou

Jiao

et al. 2018

J of Applied Polymer Sci

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Fiber-shaped supercapacitors have drawn much attention for their great potential application in future portable and wearable electronics because of their outstanding flexibility, tiny volume, and good deformability. In this work, commercial poly(ethylene terephthalate) (PET) thread was successfully converted into an electrically conductive and electrochemically active thread by introducing copper sulfide (CuS) and polyaniline (PANI) via simple chemical bath deposition and electrochemical deposition. The obtained PANI/CuS/PET electrode combined all the advantages of PET, CuS, and PANI, showing an excellent physical and electrochemical performance. The fiber-shaped supercapacitor exhibits a high specific capacitance of 29 mF cm −2 (116 mF cm −2 for a single electrode) and good cycling stability with 93.1% retention after 1000 cycles. With the simple preparation method and low-cost raw materials, this strategy provides a reference for the fabrication of portable/wearable energy storage devices.

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“…The d-spacing value signicantly decreased to 0.35 nm, a powerful clue suggesting that most oxygenfunctional groups intercalated into the interlayer spacing of graphite were removed. 31 Different from the sharp peak of the RGO, a broad and weak one (002) of the hybrid appears at 25.72 , attributed to the presence of holes in the NGCA sheet and pores in its randomly stacked solid, 32 conrming that nitrogen atoms have been successfully introduced into graphite crystal lattice. 10,33 In order to characterize the nitrogen doping and disordered degree of carbon in composites, the Raman spectra (Fig.…”

Section: Structure and Morphology Characterization Of The Hybridsmentioning

confidence: 99%

A three dimensional N-doped graphene/CNTs/AC hybrid material for high-performance supercapacitors

et al. 2017

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A Knittable Fibriform Supercapacitor Based on Natural Cotton Thread Coated with Graphene and Carbon Nanoparticles

Cited by 52 publications

References 55 publications

Core–Shell Structured Cellulose Nanofibers/Graphene@Polypyrrole Microfibers for All‐Solid‐State Wearable Supercapacitors with Enhanced Electrochemical Performance

Core–Shell Structured Cellulose Nanofibers/Graphene@Polypyrrole Microfibers for All‐Solid‐State Wearable Supercapacitors with Enhanced Electrochemical Performance

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

A three dimensional N-doped graphene/CNTs/AC hybrid material for high-performance supercapacitors

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