Thermoswitchable on-chip microsupercapacitors: one potential self-protection solution for electronic devices

Zhang, Panpan; Wang, Jinhui; Sheng, Wenbo; Wang, Faxing; Zhang, Jian; Zhu, Feng; Zhuang, Xiaodong; Jordan, Rainer; Schmidt, Oliver G.; Feng, Xinliang

doi:10.1039/c8ee00365c

Cited by 81 publications

(55 citation statements)

References 39 publications

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“…Micro‐supercapacitor (MSC) has gained great attention as an advanced on‐board energy storage system due in part to 1) its in‐plane interdigital configuration that is facilely integrated into wearable on‐chip electronics and integrated circuits, and 2) its outstanding electrochemical performance, such as short response time, long cycling life, fast rate capability, and high power delivery . Moreover, along with the growing demand for miniaturized wearable electronics, a great deal of effort had been devoted to introduce smart functions, such as self‐healing, electrochromism, shape memory, photodetection, thermal responsibility, and stretchability, into the intelligent miniaturized electronics, which exhibited great promise in the future applications of personal healthcare, modern optoelectronics, artificial intelligence, and so on . In order to be utilized in real wearable and intelligent miniaturized electronic applications, the areal electrochemical properties (performance normalized by surface area) for MSCs are more important than the volumetric characteristics due to the limited footprint area available on chips .…”

Section: Introductionmentioning

confidence: 99%

3D‐Printed Stretchable Micro‐Supercapacitor with Remarkable Areal Performance

Liu

Fan

et al. 2020

Advanced Energy Materials

188

173

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While stretchable micro‐supercapacitors (MSCs) have been realized, they have suffered from limited areal electrochemical performance, thus greatly restricting their practical electronic application. Herein, a facile strategy of 3D printing and unidirectional freezing of a pseudoplastic nanocomposite gel composed of Ti3C2Tx MXene nanosheets, manganese dioxide nanowire, silver nanowires, and fullerene to construct intrinsically stretchable MSCs with thick and honeycomb‐like porous interdigitated electrodes is introduced. The unique architecture utilizes thick electrodes and a 3D porous conductive scaffold in conjunction with interacting material properties to achieve higher loading of active materials, larger interfacial area, and faster ion transport for significantly improved areal energy and power density. Moreover, the oriented cellular scaffold with fullerene‐induced slippage cell wall structure prompts the printed electrode to withstand large deformations without breaking or exhibiting obvious performance degradation. When imbued with a polymer gel electrolyte, the 3D‐printed MSC achieves an unprecedented areal capacitance of 216.2 mF cm−2 at a scan rate of 10 mV s−1, and remains stable when stretched up to 50% and after 1000 stretch/release cycles. This intrinsically stretchable MSC also exhibits high rate capability and outstanding areal energy density of 19.2 µWh cm−2 and power density of 58.3 mW cm−2, outperforming all reported stretchable MSCs.

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Section: Introductionmentioning

confidence: 99%

3D‐Printed Stretchable Micro‐Supercapacitor with Remarkable Areal Performance

Liu

Fan

et al. 2020

Advanced Energy Materials

188

173

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“…Particularly, the in‐plane electrodes configuration not only eliminates the separator and thus significantly reducing the size of MSC unit, but also narrows interspace between positive and negative electrodes to shorten the ionic diffusion distance . Moreover, its intriguing features of straightforward integratability, outstanding mechanical flexibility, good scalability, and ingenious deployments as well as precise tunability of electrodes pattern enable it to gain much popularity recently …”

Section: Three‐dimensional Electrode Design For Mscsmentioning

confidence: 99%

“…Particularly, the in-plane electrodes configuration not only eliminates the separator and thus significantly reducing the size of MSC unit, but also narrows interspace between positive and negative electrodes to shorten the ionic diffusion distance. 9,10 Moreover, its intriguing features of straightforward integratability, [11][12][13][14] outstanding mechanical flexibility, [14][15][16][17][18] good scalability, [19][20][21][22] and ingenious deployments 23 as well as precise tunability of electrodes pattern enable it to gain much popularity recently. [24][25][26][27] Alternative to gravimetric normalization of performance, [28][29][30] the large areal/volumetric capacities are long-term scientific pursuits for MSCs, although high volumetric energy and power densities are readily achieved for the in-plane MSCs with thin films at present, 31-33 they still suffer from severely low areal energy density compared with the sandwich counterparts.…”

Section: The Main Topologies Of Mscsmentioning

confidence: 99%

Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

Liu

Zhao

Lei

2019

InfoMat

133

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Owing to the high power density, long cycle life and maintain‐free, micro‐supercapacitors (MSCs) stand out as preferred miniaturized energy source for the miscellaneous autonomous electronic components. However, the shortage of energy density is the main stumbling block for their practical applications. To solve this energy issue, constructing a three‐dimensional (3D) electrode within the limited footprint area is proposed as a new solution for improving the energy storage capacity of MSCs. In the last few years, extensive efforts have been devoted to developing 3D electrodes for MSCs, and significant progress and breakthrough have been achieved. While, there is still lack of systematic summary on the 3D electrode design strategies. To this end, it is imperative to outline the basic design conception, summarize the current states, and discuss the future research about 3D electrodes in MSCs based on the latest development.

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“…Zhang et al [75] presented a novel thermo-switchable micro-supercapacitor (TS-MSC) by introducing a smart electrolyte (Fig. 10a).…”

Section: Responsive Gpesmentioning

confidence: 99%

Safety regulation of gel electrolytes in electrochemical energy storage devices

2019

Sci. China Mater.

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Electrochemical energy storage devices, such as lithium ion batteries (LIBs), supercapacitors and fuel cells, have been vigorously developed and widely researched in past decades. However, their safety issues have appealed immense attention. Gel electrolytes (GEs), with a special state in-between liquid and solid electrolytes, are considered as the most promising candidates in electrochemical energy storage because of their high safety and stability. This review summarized the recent progresses made in the application of GEs in the safety regulation of the electrochemical energy storage devices. Special attention was paid to the gel polymer electrolytes, the organic low molecule-mass GEs, as well as the fumed silica-based and siloxane-based GEs. Finally, the current challenges and future directions were proposed in terms of the development of GEs.

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Thermoswitchable on-chip microsupercapacitors: one potential self-protection solution for electronic devices

Abstract: A microsupercapacitor with smart thermoresponsive behavior is demonstrated as one potential self-protection solution for on-chip electronic devices.

Cited by 81 publications

References 39 publications

3D‐Printed Stretchable Micro‐Supercapacitor with Remarkable Areal Performance

3D‐Printed Stretchable Micro‐Supercapacitor with Remarkable Areal Performance

Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

Safety regulation of gel electrolytes in electrochemical energy storage devices

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