A single-walled carbon nanotubes/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)/copper hexacyanoferrate hybrid film for high-volumetric performance flexible supercapacitors

Li, Jianmin; Li, Haizeng; Li, Jiahui; Wu, Guiqing; Shao, Yuanlong; Li, Yaogang; Zhang, Qinghong; Wang, Hongzhi

doi:10.1016/j.jpowsour.2018.03.046

Cited by 34 publications

(20 citation statements)

References 54 publications

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“…[ 1–6 ] Because of high power density, long cycle life, and superior rate capability, supercapacitors (SCs) have attracted increased attention. [ 7–12 ] SCs can provide power density in excess of 10 kW kg −1 since charges are stored through highly reversible ion adsorption or fast redox reactions (in the case of pseudocapacitors), which is at least ten times higher than commercially available lithium‐ion batteries. [ 13–16 ] This meets the requirements of the applications where high‐rate charge/discharge is demanded, which include but are not limited to energy harvesting/recapturing and delivery in electric vehicles, elevators, trains, smart grids, and backup power for electronics, electric utilities, and factories.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Rate Capability of Ion‐Accessible Ti₃C₂T_x‐NbN Hybrid Electrodes

Wang

Kuai

et al. 2020

Advanced Energy Materials

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Although 2D Ti3C2Tx is a good candidate for supercapacitors, the restacking of nanosheets hinders the ion transport significantly at high scan rates, especially under practical mass loading (>10 mg cm−2) and thickness (tens of microns). Here, Ti3C2Tx‐NbN hybrid film is designed by self‐assembling Ti3C2Tx with 2D arrays of NbN nanocrystals. Working as an interlayer spacer of Ti3C2Tx, NbN facilitates the ion penetration through its 2D porous structure; even at extremely high scan rates. The hybrid film shows a thickness‐independent rate performance (almost the same rate capabilities from 2 to 20 000 mV s−1) for 3 and 50 µm thick electrodes. Even a 109 µm thick Ti3C2Tx‐NbN electrode shows a better rate performance than 25 µm thick pure Ti3C2Tx electrodes. This method may pave a way to controlling ion transport in electrodes composed of 2D conductive materials, which have potential applications in high‐rate energy storage and beyond.

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Section: Introductionmentioning

confidence: 99%

“…[ 35–37 ] In this context, control of ion transport in thick electrode materials with high packing density is required to achieve high rate capability in electrodes and devices going beyond microscale. [ 8,23,38,39 ]…”

Section: Introductionmentioning

confidence: 99%

Enhanced Rate Capability of Ion‐Accessible Ti₃C₂T_x‐NbN Hybrid Electrodes

Wang

Kuai

et al. 2020

Advanced Energy Materials

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“…The CV curves can further be analyzed towards ion insertion or diffusive contribution dependent on the square root of the sweep rate and capacitive sources of the overall capacity (q c ). 57 Based on the following equation, the capacitive part of the energy storage can be determined as the y-intercept of the plot of the capacity over v À1/2 (Fig. S10 †).…”

Section: ) †)mentioning

confidence: 99%

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Hopmann

Adulhakem

2019

RSC Adv.

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Despite recent advances in hydrogel electrolytes for flexible electrochemical energy storage, ion conductors still exhibit some major shortcomings including low ionic conductivity and short lifetimes. As such, for applications in electrochromic batteries, a transparent, highly conductive electrolyte based on a dimethyl-sulfoxide (DMSO) modified polyacrylamide (PAM) hydrogel is being developed and implemented in a dual-ion Zn 2+ /Al 3+ electrochromic device consisting of a Zn anode and WO 3 cathode.Gelation in a DMSO : H 2 O mixed solvent leads to highly increased electrolyte retention in the hydrogel and prolonged life time for ionic conduction. The hydrogel-based electrochromic device offers a specific charge capacity of 16.9 mAh cm À2 at a high current density of 200 mA cm À2 while retaining 100% coulombic efficiency over 200 charge-discharge cycles. While the DMSO-modified electrolyte shows ionic conductivities up to 27 mS cm À1 at room temperature, the formation of DMSO : H 2 O nanoclusters enables ionic conduction even at temperatures as low as À15 C and retention of ionic conduction over more than 4 weeks. Furthermore, the electrochromic WO 3 cathode gives the device a controllable absorption with up to 80% change in transparency. Based on low-cost, earth abundant materials like W (tungsten), Zn (zinc) and Al (aluminum) and a scalable fabrication process, the introduced hydrogel-based electrochromic device shows great potential for next-generation flexible and wearable energy storage systems.

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“…Moreover, the achieved AMSC showed excellent mechanical flexibility and integration capability. In another work, a freestanding SWCNTs/PEDOT:PSS/CuHCF composite film-based SC electrode was fabricated by Li et al [122] Figure 9i shows a-c) adapted from Ref. [68] Copyright (2015), with permission from Elsevier.…”

Section: Active Materials Grown On Flexible Substratesmentioning

confidence: 99%

Toward the Design of High‐performance Supercapacitors by Prussian Blue, its Analogues and their Derivatives

Lin

Zhang

Xiong

et al. 2020

Energy & Environ Materials

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Supercapacitors (SCs) with high power output have attracted increasing attention as efficient and environmentally friendly energy storage devices. Prussian blue and its analogues (PB/PBAs) are simple coordination polymers with tunable chemical compositions and open framework. Prussian blue can act as electrode materials in its pristine form and has also been utilized to derive various metallic nanostructures for electrochemical applications due to their simple fabrication process, non‐toxic characteristics, and low price. Here, we firstly describe the charge storage mechanisms of SCs briefly followed by an introduction of the fabrication methods of PB/PBAs and their derivatives. Then, a comprehensive review on recent studies of the use of PB/PBAs and their derivatives as the electrode materials for SCs are given with a focus on strategies to improve their electrochemical performances. Finally, we discuss critical challenges in this research area and propose some general ideas for future research.

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A single-walled carbon nanotubes/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)/copper hexacyanoferrate hybrid film for high-volumetric performance flexible supercapacitors

Cited by 34 publications

References 54 publications

Enhanced Rate Capability of Ion‐Accessible Ti₃C₂T_x‐NbN Hybrid Electrodes

Enhanced Rate Capability of Ion‐Accessible Ti₃C₂T_x‐NbN Hybrid Electrodes

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Toward the Design of High‐performance Supercapacitors by Prussian Blue, its Analogues and their Derivatives

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A single-walled carbon nanotubes/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)/copper hexacyanoferrate hybrid film for high-volumetric performance flexible supercapacitors

Cited by 34 publications

References 54 publications

Enhanced Rate Capability of Ion‐Accessible Ti3C2Tx‐NbN Hybrid Electrodes

Enhanced Rate Capability of Ion‐Accessible Ti3C2Tx‐NbN Hybrid Electrodes

Rechargeable Zn2+/Al3+ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Toward the Design of High‐performance Supercapacitors by Prussian Blue, its Analogues and their Derivatives

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Product

Resources

About

Enhanced Rate Capability of Ion‐Accessible Ti₃C₂T_x‐NbN Hybrid Electrodes

Enhanced Rate Capability of Ion‐Accessible Ti₃C₂T_x‐NbN Hybrid Electrodes

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes