An all-in-one self-healable capacitor with superior performance

Liu, Fatang; Wang, Jingchen; Pan, Qinmin

doi:10.1039/c7ta10323a

Cited by 57 publications

(51 citation statements)

References 27 publications

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“…Clearly,t he as-prepared PAMPSA/PVA/LiCl in this work has not only superior mechanical properties, but also excellent self-healing performance, and thus much better overall properties compared with previouslyp ublished polyelectrolytes. [11][12][13][14] To prepare as elf-healablea nd flexible supercapacitor,f lexible electrodes made of polypyrrole@single-walled carbon nanotubes (PPy@SWCNTs)f ilms were fabricated by facile in situ polymerization of pyrrole monomer on SWCNTs. The as-pre-pared PPy@SWCNTsf ilm exhibited both high conductivity and electrochemical activity.P Py and SWCNTsa re well knownf or their excellent performance from the viewpoint of energy storage materials.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, the ultimate tensile strength of PVA–H 2 SO 4 polyelectrolyte was good, whereas the strain at break and healing efficiency (only 52.3 %) were limited. Clearly, the as‐prepared PAMPSA/PVA/LiCl in this work has not only superior mechanical properties, but also excellent self‐healing performance, and thus much better overall properties compared with previously published polyelectrolytes …”

Section: Resultsmentioning

confidence: 99%

“…However,t he mechanical properties of the as-prepared hydrogel electrolyte were limited, with an ultralow stress of 5.82 kPa. Pan et al [13] fabricated an all-in-one self-healablec apacitor by in situ integration of polyaniline into ac opolymer of vinylimidazole and hydroxypropyl acrylate, which showed good healing performance after breaking/healing ten times. However,t he mechanical strengthw as stilll imited ( % 0kPa).…”

Section: Introductionmentioning

confidence: 99%

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Self‐Healable Polyelectrolytes with Mechanical Enhancement for Flexible and Durable Supercapacitors

Zhang

Liu

et al. 2019

Chemistry A European J

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The practical application of advanced personalized electronics is inseparablef rom flexible, durable, and even self-healable energy storage devices. However,t he mechanical and self-healing performance of supercapacitors is still limited at present.H erein, highly transparent, stretchable, and self-healablep oly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPSA)/poly(vinyl alcohol) (PVA)/LiClp olyelectrolytes were facilely preparedb yo ne-step radical polymerization. The cooperationo fP AMPSA and PVAs ignificantly increased the mechanical and self-healing capacity of the polyelectrolyte, which exhibited superior stretchabilityo f 938 %, stress of 112.68 kPa, good electrical performance (ionic conductivity up to 20.6 mS cm À1 ), and high healing ef-ficiency of 92.68 %a fter 24 h. After assembly with polypyrrole-coated single-walled carbon nanotubes, the resulting as-prepared supercapacitorh ad excellent electrochemical properties with high areal capacitance of 297 mF cm À2 at 0.5 mA cm À2 and good rate capability (218 mF cm À2 at 5mAcm À2 ). Besides, after cutting in two the supercapacitor recovered 99.2 %o fi ts original specific capacitance after healing for 24 ha tr oom temperature. The resultsa lso showedn egligible change in the interiorc ontact resistance of the supercapacitor after ten cutting/healing cycles. The present work provides ap ossible solution for the development of smart and durable energy storage devices with low cost for next-generationi ntelligent electronics.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Self‐Healable Polyelectrolytes with Mechanical Enhancement for Flexible and Durable Supercapacitors

Zhang

Liu

et al. 2019

Chemistry A European J

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“…Additionally, an all-in-one device configuration was also regarded to be feasible for the intrinsic self-healability, which was typically fabricated by in-situ growth of electroactive components on a free-standing self-healable electrolyte as shown in Figure 5m. [161] Compared with self-healable flexible supercapacitors, the investigation of self-healable flexible batteries, one of the most important energy storage devices, is still challenging due to more critical requirements on the conductivity of both electrolyte and electrode. [162][163][164][165] A flexible and self-healable aqueous lithium-ion battery (LIB) was created by Peng et al for the first time.…”

Section: Self-healing Energy Harvesting and Storage: From Naturementioning

confidence: 99%

The Evolution of Flexible Electronics: From Nature, Beyond Nature, and To Nature

et al. 2020

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The flourishing development of multifunctional flexible electronics cannot leave the beneficial role of nature, which provides continuous inspiration in their material, structural, and functional designs. During the evolution of flexible electronics, some originated from nature, some were even beyond nature, and others were implantable or biodegradable eventually to nature. Therefore, the relationship between flexible electronics and nature is undoubtedly vital since harmony between nature and technology evolution would promote the sustainable development. Herein, materials selection and functionality design for flexible electronics that are mostly inspired from nature are first introduced with certain functionality even beyond nature. Then, frontier advances on flexible electronics including the main individual components (i.e., energy (the power source) and the sensor (the electric load)) are presented from nature, beyond nature, and to nature with the aim of enlightening the harmonious relationship between the modern electronics technology and nature. Finally, critical issues in next-generation flexible electronics are discussed to provide possible solutions and new insights in prospective exploration directions.

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“…Further studies focus on overcoming the problem that traditional SCs sacrifice partial capacitance storage with the increase of self-healing times. Liu et al [55] prepared the self-healing hydrogel (PVH) with vinylimidazole (VI) and hydroxypropyl acrylate (HPA) covalently crosslinked at the molecular level, and then deposited the PANI active material in the same way, as shown in Fig. 2d.…”

Section: Self-healing Polyelectrolytementioning

confidence: 99%

Recent advances in all-in-one flexible supercapacitors

et al. 2020

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The rise of personalized flexible electronics has promoted the rapid development of flexible supercapacitors due to their long service life, fast charging-discharging rates and safe operation. Different from the traditional flexible supercapacitors, the all-in-one integrated flexible supercapacitors are more resistant to deformation and lower interface resistance, which have a broader application prospect in the field of flexible electronics. This review briefly summarizes the preparation methods and electrochemical properties of some typical all-in-one supercapacitors, represented by planar and fibrous structures in recent years. Firstly, the basic understanding of traditional flexible supercapacitors and all-in-one integrated flexible supercapacitors, and the key parameters of the performance of flexible supercapacitors are introduced. Subsequently, the hydrogel matrix all-in-one supercapacitors with different functional characteristics (stretchable, self-healing and compressible) and the nonhydrogel matrix (separator, flexible membrane) all-in-one supercapacitors are discussed. Furthermore, the challenges and future development of flexible supercapacitors are considered.

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An all-in-one self-healable capacitor with superior performance

Abstract: A supercapacitor achieved by in situ integrating electroactive components into a single network exhibits superior capacitive properties after 10 breaking/healing cycles.

Cited by 57 publications

References 27 publications

Self‐Healable Polyelectrolytes with Mechanical Enhancement for Flexible and Durable Supercapacitors

Self‐Healable Polyelectrolytes with Mechanical Enhancement for Flexible and Durable Supercapacitors

The Evolution of Flexible Electronics: From Nature, Beyond Nature, and To Nature

Recent advances in all-in-one flexible supercapacitors

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