Controlling the laser induction and cutting process on polyimide films for kirigami-inspired supercapacitor applications

Wang, Wentao; Lu, Longsheng; Xie, Yingxi; Wu, Wenwang; Liang, Rongxuan; Li, Zehong; Tang, Yong

doi:10.1007/s11431-019-1543-y

Cited by 23 publications

(7 citation statements)

References 55 publications

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“…These approaches have resulted in devices that can be bent and twisted, with a device prepared using silicone rubber that is transparent, can be stretched to 400%, and can be folded in half (Figure 26(ii)) [209]. Another approach to prepare flexible devices involves patterning the LIG on PI in specific geometries to result in freestanding, three-dimensional structures following either cutting into kirigami-inspired geometries [214], or transferring to a prestretched elastomer substrate [215]. However, nearly all highly stretchable and bendable devices are prepared at the expense of electrochemical performance, with areal capacitances of < 1 mF cm −2 typically reported, which is much lower than reports from conventional LIG, as seen in Figure 19(b,c).…”

Section: Advances In Ees Devices Via Advanced Manufacturing Techniquesmentioning

confidence: 99%

Advanced manufacturing approaches for electrochemical energy storage devices

Hawes

Rehman

Rangom

et al. 2023

International Materials Reviews

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Advancements in electrochemical energy storage devices such as batteries and supercapacitors are vital for a sustainable energy future. Significant progress has been made in developing novel materials for these devices, but less attention has focused on developments in electrode and device manufacturing. While electrodes are traditionally made through slurry casting of electrochemically active material, advanced manufacturing techniques enable patterning of novel electrode architectures and control of device geometries in real-time, which can potentially result in electrodes with increased loading, improved electrochemical performance, and added functionality, such as flexibility and wearability. These inexpensive methods are particularly suited for lab-scale research and start-up companies, as they enable rapid prototyping without a full device production line. The present review describes three main methods of advanced manufacturing (inkjet printing, direct ink writing, and laser-induced graphene techniques) and evaluates the performance of batteries and supercapacitors fabricated via these methods in comparison to traditionally manufactured devices.

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Section: Advances In Ees Devices Via Advanced Manufacturing Techniquesmentioning

confidence: 99%

Advanced manufacturing approaches for electrochemical energy storage devices

Hawes

Rehman

Rangom

et al. 2023

International Materials Reviews

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“…71 , Royal Society of Chemistry. polyimide onto 3D nickel foam, as a porous electrode with laser processing 95 . The LSG/Ni electrode shows a high electrical conductivity (359712 S•m −1 ) and the fabricated LSG/Ni supercapacitor demonstrated a large areal specific capacitance (995 mF•cm −2 ), a power densitiy (9.39 mW•cm −2 ) and over 98% capacitance retention after 10000 cycles.…”

Section: -7mentioning

confidence: 99%

Laser scribed graphene for supercapacitors

Zhang¹,

Chen²,

Gu³

2021

OEA

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Supercapacitors, with the merits of both capacitors for safe and fast charge and batteries for high energy storage have drawn tremendous attention. Recently, laser scribed graphene has been increasingly studied for supercapacitor applications due to its unique properties, such as flexible fabrication, large surface area and high electrical conductivity. With the laser direct writing process, graphene can be directly fabricated and patterned as the supercapacitor electrodes. In this review, facile laser direct writing methods for graphene were firstly summarized. Various precursors, mainly graphene oxide and polyimide were employed for laser scribed graphene and the modifications of graphene properties were also discussed. This laser scribed graphene was applied for electrochemical double-layer capacitors, pseudo-capacitors and hybrid supercapacitors. Diverse strategies including doping, composite materials and pattern design were utilized to enhance the electrochemical performances of supercapacitors. Featured supercapacitors with excellent flexible, ultrafinestructured and integrated functions were also reviewed.

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“…Understanding the formation mechanism of LIG to optimize its preparation, characteristics, and applications is crucial. The primary factors influencing the LIG formation mechanism are carbon precursor materials and types of lasers [ 11 , 12 , 13 ]. Carbon precursor materials typically comprise high-molecular-weight polymers containing aromatic compounds or natural substances, such as lignin.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Wearable Sensor Based on Laser-Induced Graphene for High-Precision Fine Motion Capture for Pilots

Xing,

Zou,

Zhong

et al. 2024

Sensors

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There has been a significant shift in research focus in recent years toward laser-induced graphene (LIG), which is a high-performance material with immense potential for use in energy storage, ultrahydrophobic water applications, and electronic devices. In particular, LIG has demonstrated considerable potential in the field of high-precision human motion posture capture using flexible sensing materials. In this study, we investigated the surface morphology evolution and performance of LIG formed by varying the laser energy accumulation times. Further, to capture human motion posture, we evaluated the performance of highly accurate flexible wearable sensors based on LIG. The experimental results showed that the sensors prepared using LIG exhibited exceptional flexibility and mechanical performance when the laser energy accumulation was optimized three times. They exhibited remarkable attributes, such as high sensitivity (~41.4), a low detection limit (0.05%), a rapid time response (response time of ~150 ms; relaxation time of ~100 ms), and excellent response stability even after 2000 s at a strain of 1.0% or 8.0%. These findings unequivocally show that flexible wearable sensors based on LIG have significant potential for capturing human motion posture, wrist pulse rates, and eye blinking patterns. Moreover, the sensors can capture various physiological signals for pilots to provide real-time capturing.

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Controlling the laser induction and cutting process on polyimide films for kirigami-inspired supercapacitor applications

Cited by 23 publications

References 55 publications

Advanced manufacturing approaches for electrochemical energy storage devices

Advanced manufacturing approaches for electrochemical energy storage devices

Laser scribed graphene for supercapacitors

A Flexible Wearable Sensor Based on Laser-Induced Graphene for High-Precision Fine Motion Capture for Pilots

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