Flexible all-solid planar fibrous cellulose nonwoven fabric-based supercapacitor via capillarity-assisted graphene/MnO2 assembly

Li, Zengqing; Tian, Mingwei; Sun, Xuantong; Zhao, Honglin; Zhu, Shifeng; Zhang, Xiansheng

doi:10.1016/j.jallcom.2018.12.254

Cited by 65 publications

(34 citation statements)

References 48 publications

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“…Here, the FFS‐NFMCF exhibits a maximum energy density of 30.5 µW h cm −2 at a power density of 18 µW cm −2 , and a maximum energy density of 25.3 µW h cm −2 at a power density of 90 µW cm −2 , both of which are much higher than those of the previously‐reported fibrous supercapacitors. [ 14,43,51–58 ] In addition, the results in Figure 10b indicate the mechanical bending test result with the capacitance retention of the FFS‐NFMCF after 100 repeat times at a current density of 250.0 µA cm −2 in the straight and bent states, thus demonstrating the excellent mechanical characteristics and high flexibility of this material. Moreover, the FFM‐NFMCF shows the excellent capacity retention during the repeated washing process including washing, drying, and dried state, which indicates it can be applied to electronic textiles as shown in Figure S6, Supporting Information.…”

Section: Resultsmentioning

confidence: 84%

Surface Engineering of Carbon via Coupled Porosity Tuning and Heteroatom‐Doping for High‐Performance Flexible Fibrous Supercapacitors

Lee

2021

Adv Funct Materials

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Flexible fibrous supercapacitors (FFS) are considered the next-generation wearable energy storage devices because they provide reliable safety, ecofriendliness, and high power density. In particular, the FFS is desirable for application to wearable electronics because it can overcome disadvantages of the lithium-ion battery (LIB), such as the hazard of explosion and the complex manufacturing process. Nevertheless, the practical application of the FFS continues to be inhibited by the poor energy storage performance due to the limited specific surface area, poor electrical properties, and low wettability of the carbon fiber electrode. Herein, for the first time, the surface engineering of an FFS using nitrogen and fluorine codoped mesoporous carbon fibers (FFS-NFMCF) is described, and the synergistic effect of porosity tuning and heteroatom codoping upon the electrochemical performance is demonstrated. The resultant supercapacitor shows a high specific capacitance of 243.9 mF cm −2 at a current density of 10.0 µA cm −2 and good ultrafast cycling stability with capacitance retention of 91.3% for up to 10 000 cycles at a current density of 250.0 µA cm −2 . More interestingly, the FFS-NFMCF exhibits good mechanical properties and remarkable safety in practical application, thus demonstrating its feasibility for use in wearable electronic textiles.

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Section: Resultsmentioning

confidence: 84%

Surface Engineering of Carbon via Coupled Porosity Tuning and Heteroatom‐Doping for High‐Performance Flexible Fibrous Supercapacitors

Lee

2021

Adv Funct Materials

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“…Electrochemical active cellulose‐based electrodes can be produced by integrating cellulose fibers with metals, [ 185 ] carbon‐based materials, [ 238 ] polymers (e.g., PEDOT, [ 239 ] PANI), [ 240 ] MXenes, [ 241 ] or their composites. [ 242 ] For instance, inspired by the sophisticated structures of hedgehog spines, Li et al. [ 239 ] created a multidimensional hierarchical fabric‐based SC with enhanced energy storage performance.…”

Section: Electronic Devices Based On Flexible Porous Substratesmentioning

confidence: 99%

“…Electrochemical active cellulose-based electrodes can be produced by integrating cellulose fibers with metals, [185] carbon-based materials, [238] polymers (e.g., PEDOT, [239] PANI), [240] MXenes, [241] or their composites. [242] For instance, inspired by the sophisticated structures of hedgehog spines, Li et al [239] created a multidimensional hierarchical fabric-based SC with enhanced energy storage performance. The bionic fiber microarray structure of the graphene/PEDOT-coated hierarchical fabric (G/PHF) electrode is illustrated in Figure 18a, which helps to load more electrochemical active materials.…”

Section: Batteries and Supercapacitorsmentioning

confidence: 99%

A New Class of Electronic Devices Based on Flexible Porous Substrates

Zhang

Huang

et al. 2022

Advanced Science

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With the advent of the Internet of Things era, the connection between electronic devices and humans is getting closer and closer. New‐concept electronic devices including e‐skins, nanogenerators, brain–machine interfaces, and implantable medical devices, can work on or inside human bodies, calling for wearing comfort, super flexibility, biodegradability, and stability under complex deformations. However, conventional electronics based on metal and plastic substrates cannot effectively meet these new application requirements. Therefore, a series of advanced electronic devices based on flexible porous substrates (e.g., paper, fabric, electrospun nanofibers, wood, and elastic polymer sponge) is being developed to address these challenges by virtue of their superior biocompatibility, breathability, deformability, and robustness. The porous structure of these substrates can not only improve device performance but also enable new functions, but due to their wide variety, choosing the right porous substrate is crucial for preparing high‐performance electronics for specific applications. Herein, the properties of different flexible porous substrates are summarized and their basic principles of design, manufacture, and use are highlighted. Subsequently, various functionalization methods of these porous substrates are briefly introduced and compared. Then, the latest advances in flexible porous substrate‐based electronics are demonstrated. Finally, the remaining challenges and future directions are discussed.

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“…Substantial efforts have been made in the research of exible supercapacitors to meet the rapid development of wearable electronic devices because exible supercapacitors exhibit outstanding mechanical exibility, long lifespan, and high power capability. [1][2][3][4] The electrochemical property of the supercapacitor is mainly determined by the performance of the corresponding electrode material. Although a considerable mass of electric double-layer and pseudo-capacitive materials were developed for textile electrodes, the preparation methods for most of the exible electrodes are complicated, timeconsuming, and harsh, [5][6][7][8][9][10] requiring high temperature, long time, or hazardous solvent.…”

Section: Introductionmentioning

confidence: 99%

Facile construction of a flexible and wearable electrode based on the hierarchical structure of RGO-coated cotton fabric with amorphous Co–Ni–B alloy

Wang

Zhang

et al. 2020

RSC Adv.

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Flexible all-solid planar fibrous cellulose nonwoven fabric-based supercapacitor via capillarity-assisted graphene/MnO2 assembly

Cited by 65 publications

References 48 publications

Surface Engineering of Carbon via Coupled Porosity Tuning and Heteroatom‐Doping for High‐Performance Flexible Fibrous Supercapacitors

Surface Engineering of Carbon via Coupled Porosity Tuning and Heteroatom‐Doping for High‐Performance Flexible Fibrous Supercapacitors

A New Class of Electronic Devices Based on Flexible Porous Substrates

Facile construction of a flexible and wearable electrode based on the hierarchical structure of RGO-coated cotton fabric with amorphous Co–Ni–B alloy

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