Layered coating of ultraflexible graphene-based electrodes for high-performance in-plane quasi-solid-state micro-supercapacitors

Du, Jingwei; Mu, Xuemei; Zhao, Yirong; Zhang, Yaxiong; Zhang, Shengming; Huang, Baoyu; Sheng, Yingzhuo; Xie, Yizhu; Zhang, Zhenxing; Xie, Erqing

doi:10.1039/c9nr03917a

Cited by 30 publications

(22 citation statements)

References 55 publications

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“…Then, the GO film was reduced through HI treatment or laser irradiation et al Finally, laser carving was introduced to form the interdigitated pattern, followed by casting a gel electrolyte to complete the MSCs (Figure 3d). [145][146][147] With the similar fabrication process, other scribing techniques such as plasma-jet etching and focused ion beam have also been used to fabricate planar graphenebased MSCs. [148]…”

Section: Laser Scribingmentioning

confidence: 99%

Planar Graphene‐Based Microsupercapacitors

Lü

Jin

Han

et al. 2021

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With the development of wearable, portable, and implantable electronic devices, flexible and on‐chip microsupercapacitors (MSCs) are urgently needed for miniaturized energy storage. Planar MSCs have high power density, fast charge/discharge rate, and long operating lifetime, and can adapt to future flexible, integrated, and miniaturized electronic systems for wide application foreground. Due to the high specific surface area, outstanding electrical conductivity, and excellent electron mobility, graphene shows promising advantages in planar MSCs devices, thus stimulates wide‐ranging research in the last few years. Herein, the recent progress of planar graphene‐based MSCs, including the intrinsic structure regulation of graphene‐based electrode materials, the specific fabrication techniques, the multifunctional integration, and various applications of MSCs as flexible and on‐chip energy storage is systematically summarized. The key challenges and prospects of future planar graphene‐based MSCs are also discussed targeting to realize their practical applications.

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Section: Laser Scribingmentioning

confidence: 99%

Planar Graphene‐Based Microsupercapacitors

Lü

Jin

Han

et al. 2021

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“…As mentioned above, the narrow gap (even nanoscale gap) between the microelectrodes can greatly shorten the transport space of electrolyte ions to optimize the electrochemical performance of MSCs [140], which can be easily achieved by using femtosecond laser cutting technology [141]. Meanwhile, this technology has a wide range of applications for machining 2D stacked MSCs and is able to designs various MSC shapes according to actual demand [105,142,143]. In addition, the contact area between the electrodes and electrolytes can be efficiently adjusted by ingenious spatial machining the 3D MSCs with laser cutting strategy, greatly improving their volume/mass energy densities [53].…”

Section: Laser Cuttingmentioning

confidence: 99%

Laser fabrication of functional micro-supercapacitors

Wang

Yang

2021

Journal of Energy Chemistry

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“…The developed, printed microsupercapacitor exhibited a volumetric energy density of 1.13 × 10 −3 Wh/cm 3 at a power density of 0.11 W/cm 3 and 80% charge retention after 5000 charge–discharge cycles at bending angles up to 120°. Du et al (2019) have reported the fabrication of reduced graphene–MnO 2 composite film along with completely reduced graphene oxide film as a current collector. The developed assembly exhibited high flexibility (bending radius 0 cm infinity) along with an areal capacitance of 31.5 mF/cm 2 at 0.2 mA/cm 2 current density and 77% charge retention for 6000 charge–discharge cycles.…”

Section: Current Collector Materials For Multifarious Supercapacitorsmentioning

confidence: 99%

Recent progress on novel current collector electrodes for energy storage devices: Supercapacitors

Kumar

Pradhan

Jena

2021

WIREs Energy & Environment

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Current collectors play a very crucial role in the performance of an energy storage device. Regarding supercapacitors, material design, processing, and current collectors' surface properties can result in substantial variation in energy density, power output, cyclic charge–discharge behavior, and other key performance parameters. Most of the reviews in supercapacitor materials and devices focus on the synthesis, characterization, and electrochemical properties of electrode materials. In the present report, the recent advances in supercapacitor electrodes in conjunction with current collector materials and design are summarized in light of various supercapacitor devices categorized concerning their applications and working mechanisms. It includes the literature documented on multifarious supercapacitors, that is, flow supercapacitors, alternating current line filtering supercapacitors, redox electrolyte‐enhanced supercapacitor, metal ion hybrid supercapacitors, microsupercapacitors, electrochromic supercapacitors, and self‐healing supercapacitors. To the best of authors' knowledge, this is a new and recent summarized report on the development of current collector materials based on intended applications and the working principles of supercapacitors. This article is categorized under: Energy and Development > Science and Materials Energy Research & Innovation > Science and Materials Energy Systems Analysis > Science and Materials

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Layered coating of ultraflexible graphene-based electrodes for high-performance in-plane quasi-solid-state micro-supercapacitors

Abstract: Ultraflexible graphene films reduced by HI serve as isolated structural units to fabricate micro-supercapacitors.

Cited by 30 publications

References 55 publications

Planar Graphene‐Based Microsupercapacitors

Planar Graphene‐Based Microsupercapacitors

Laser fabrication of functional micro-supercapacitors

Recent progress on novel current collector electrodes for energy storage devices: Supercapacitors

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