A Mechanically and Electrically Self‐Healing Supercapacitor

Wang, Hua; Zhu, Bowen; Jiang, Wencao; Yang, Yun; Leow, Wan Ru; Wang, Hong; Chen, Xiao

doi:10.1002/adma.201305682

Cited by 361 publications

(324 citation statements)

References 64 publications

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“…[1][2][3][4][5][6] Materials decorated with self-healing feature could boost the lifetime of products and build new potentials in various areas. 7 Selfhealing conductors are currently attracting a significant number of studies, [8][9][10][11][12][13][14][15][16] particularly for advanced electronic applications, including chemical sensors, 17 thermal sensors, 18 supercapacitors, [19][20][21] lithium-ion batteries, 2 and electronic skin. 7,22 Similarly, flexible conductors play an important role in the emerging fields, such as prosthetics, soft robotics, stretchable displays and human machine interfaces.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Multiwalled Carbon Nanotube-Reinforced Polyborosiloxane Nanocomposites with Mechanically Adaptive and Self-Healing Capabilities for Flexible Conductors

Chen

2016

ACS Appl. Mater. Interfaces

105

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Intrinsic self-healing polyborosiloxane (PBS) and its multi-walled carbon nanotube (MWCNT)-reinforced nanocomposites were synthesized from hydroxyl terminated poly(dimethylsiloxane) (PDMS) and boric acid at room temperature. The formation of Si-O-B moiety in PBS was confirmed by Fourier transform infrared spectroscopy. PBS and its MWCNT-reinforced nanocomposites were found possessing water or methanol activated mechanically adaptive behaviors; the compressive modulus decreased substantially when exposed to water or methanol vapor and recovered their high value after the stimulus was removed. The compressive modulus was reduced by 76%, 86%, 90% and 83% for neat PBS and its nanocomposites containing 3.0 wt.%, 6.2 wt.% and 13.3 wt.% MWCNTs, respectively, in water vapor, and the modulus reduction activated by methanol vapor was greater than by water vapor. MWCNTs at higher contents acted as a continuous electrical channel in PBS offering electrical conductivity, which was up to 1.21 S/cm for the nanocomposite containing 13.3 wt.% MWCNTs. The MWCNT-reinforced PBS nanocomposites also showed excellent mechanically and electrically self-healing properties, moldability and adhesion to PDMS elastomer substrate. These properties enabled a straightforward fabrication of self-repairing MWCNT/PBS electronic circuits on PDMS elastomer substrates.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Multiwalled Carbon Nanotube-Reinforced Polyborosiloxane Nanocomposites with Mechanically Adaptive and Self-Healing Capabilities for Flexible Conductors

Chen

2016

ACS Appl. Mater. Interfaces

105

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“…[98] An artificial healable material based on a supramolecular network was introduced, and the dynamic and reversible hydrogen bonding within the network realized the healable functionality of the material in response to mechanical damage. Since the material displayed gel-like properties due to its low glass transition temperature below room temperature, 47 wt% of TiO 2 nanoflowers was incorporated to elevate the overall mechanical strength in order to obtain a free-standing substrate.…”

Section: Self-healing Abilities In Response To External Mechanical Damentioning

confidence: 99%

Section: Self-healing Abilities In Response To External Mechanical Damentioning

confidence: 99%

Smart Electrochemical Energy Storage Devices with Self‐Protection and Self‐Adaptation Abilities

Yang

Wang

et al. 2017

Advanced Materials

Self Cite

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Currently, with booming development and worldwide usage of rechargeable electrochemical energy storage devices, their safety issues, operation stability, service life, and user experience are garnering special attention. Smart and intelligent energy storage devices with self‐protection and self‐adaptation abilities aiming to address these challenges are being developed with great urgency. In this Progress Report, we highlight recent achievements in the field of smart energy storage systems that could early‐detect incoming internal short circuits and self‐protect against thermal runaway. Moreover, intelligent devices that are able to take actions and self‐adapt in response to external mechanical disruption or deformation, i.e., exhibiting self‐healing or shape‐memory behaviors, are discussed. Finally, insights into the future development of smart rechargeable energy storage devices are provided.

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“…On the micro level, the two are merged and permeated, finally get the compared strength with the initial one, which is shown in Figure 1. Self-healing would be ideal for vulnerable applications, such as surface coatings, supercapacitor and so on [4][5][6][7] . Hydrogels storing much water among 3D network are regarded as an important class of biomaterial based on the similar structure with extracellular matrix (ECM).…”

Section: Introductionmentioning

confidence: 99%