Scalable and fast fabrication of graphene integrated micro-supercapacitors with remarkable volumetric capacitance and flexibility through continuous centrifugal coating

Shi, Xiaoyu; Tian, Lijun; Wang, Sen; Wen, Pengchao; Su, Ming; Xiao, Han; Das, Pratteek; Zhou, Feng; Liu, Zhaoping; Sun, Cheng; Wu, Zhong‐Shuai; Bao, Xinhe

doi:10.1016/j.jechem.2020.04.064

Cited by 26 publications

(10 citation statements)

References 41 publications

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“…In another hand, flexible and lightweight on-chip MSCs with excellent mechanical and electrochemical performances can satisfy the needs of wearable and portable electronics [117][118][119][120][121][122]. However, it is difficult to fabricate the polymer-based devices under extreme reaction conditions, which can be easily achieved by using the non-contact laser processing [123][124][125].…”

Section: Direct Laser Etchingmentioning

confidence: 99%

Laser fabrication of functional micro-supercapacitors

Wang

Yang

2021

Journal of Energy Chemistry

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Section: Direct Laser Etchingmentioning

confidence: 99%

Laser fabrication of functional micro-supercapacitors

Wang

Yang

2021

Journal of Energy Chemistry

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“…The in-plane MSCs achieved a volumetric capacitance of 75 F cm À3 (@ 10 mV s À1 ), high-rate capability of 16% capacitance retention up to 105 mV s À1 , and an excellent Reproduced with permission. [181] Copyright 2021, Elsevier.…”

Section: Graphene/tmhosmentioning

confidence: 99%

“…This device delivered a high volumetric capacitance of 31.8 F cm À3 and energy density of 2.8 mWh cm À3 . [181] This mask-assisted technique is widely used for processing the graphene-free MSCs. [182,183] Yan group made a 3D porous PEDOT:PSS/graphene sponge to enhance the mechanical flexibility and electrochemical performance of MSC.…”

Section: Graphene/tmhosmentioning

confidence: 99%

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Recent Progress in Graphene‐Based Microsupercapacitors

et al. 2021

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The fast growing field of microsized electronic devices has urgent demand for next‐generation microscale, flexible, and lightweight energy conversion and storage devices. Among the various microdevices, microsupercapacitors (MSCs) are a promising energy storage device due to their fast rechargeability, better rate capability, long cycle life, and ultrahigh power density. The 2D graphene possesses a large surface area with flexibility, better conductivity, transparency, and high quantum capacitance that lead to an ideal energy storage material for the MSCs. Therefore, this review aims to summarize recent advances in graphene‐based MSCs. A particular emphasis is put on the various fabrication technologies for MSCs such as printing, laser, wet‐spin, and photolithography technique that are discussed elaborately. Moreover, an overview of the state‐of‐the‐art on graphene‐based electrode materials and its different composite with transition metal oxides, transition metal hydroxides, conducting polymers, transition metal chalcogenides, and MXene‐based electrode materials for MSCs are discussed and their electrochemical performances are summarized. Furthermore, this review concludes with perspectives and outlooks.

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“…In the past decade, along with the growing demand for flexible electronic devices, miniaturized energy storage devices for on-chip systems have attracted significant attention. − Although the lithium-ion thin-film microbatteries have been greatly improved since they were manufactured and applied to the miniaturized embedded system, the inherent defects of the microbatteries affect their further application. − For example, a microbattery with layered design structure has disadvantages in flexible energy storage and limited cycle life. Moreover, low power density is difficult to meet the power demand of some devices. − To address these problems, planar microsupercapacitors (MSCs) with interdigitated electrodes are proposed as an excellent solution. − Different from the layer structured microbatteries, the interdigitated electrodes of planar MSCs were in the same plane and separated with a short distance. − Therefore, planar MSCs with high power density are more suitable for on-chip flexible energy-storage applications. − …”

Section: Introductionmentioning

confidence: 99%

Flexible Planar Microsupercapacitors Based on Polypyrrole Nanotubes

Cao

et al. 2021

ACS Appl. Energy Mater.

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As miniaturized energy storage devices, flexible planar microsupercapacitors (MSCs) with high performance have broad applications on flexible electronics. However, traditional electrode fabrication methods (photolithography, laser writing, inkjet printing, etc.) are complex and expensive. In this work, a patterned interdigital electrode, which was prepared with a hard template of hydrophobic glue paper, was proposed. Peelable nickel nanocone arrays (NNAs) and polypyrrole nanotubes (PPyNTs) were electrochemically deposited on the substrate as 3D conductive frames and active material, respectively. The device demonstrates an areal capacitance up to 60.2 mF cm–2, high capacitance retention of 84.3% after 5000 cycles, as well as impressive mechanical performance that can work after 180° bending. Furthermore, a high energy density of 5.35 μWh cm–2 and power density of 2 mW cm–2 were obtained. Lastly, the fabricated MSCs presented great potential to integrate with series and parallel.

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Scalable and fast fabrication of graphene integrated micro-supercapacitors with remarkable volumetric capacitance and flexibility through continuous centrifugal coating

Cited by 26 publications

References 41 publications

Laser fabrication of functional micro-supercapacitors

Laser fabrication of functional micro-supercapacitors

Recent Progress in Graphene‐Based Microsupercapacitors

Flexible Planar Microsupercapacitors Based on Polypyrrole Nanotubes

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