Permeable superelastic liquid-metal fibre mat enables biocompatible and monolithic stretchable electronics

Ma, Zhijun; Huang, Qiyao; Xu, Qi; Zhuang, Qiuna; Zhao, Xin; Yang, Yuhe; Qiu, Hua; Yang, Zhilu; Wang, Cong; Chai, Yang; Zheng, Zijian

doi:10.1038/s41563-020-00902-3

Cited by 535 publications

(510 citation statements)

References 46 publications

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“…Wearable and stretchable electronic devices are often fabricated onto polymer materials [ 36 , 37 ] or fabric [ 38 , 39 ], which could be produced by fiber-to-yarn conversion compatible with textile manufacturing [ 40 , 41 ]. The devices have advantages of stretchability for the production of sportswear [ 42 ], nano-energy generation [ 43 ], and implantable healthcare devices [ 44 ].…”

Section: Emerging Opportunities For Carbon Nanotube Applicationsmentioning

confidence: 99%

Applications of Carbon Nanotubes in the Internet of Things Era

et al. 2021

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The post-Moore's era has boosted the progress in carbon nanotube-based transistors. Indeed, the 5G communication and cloud computing stimulate the research in applications of carbon nanotubes in electronic devices. In this perspective, we deliver the readers with the latest trends in carbon nanotube research, including high-frequency transistors, biomedical sensors and actuators, brain–machine interfaces, and flexible logic devices and energy storages. Future opportunities are given for calling on scientists and engineers into the emerging topics.

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Section: Emerging Opportunities For Carbon Nanotube Applicationsmentioning

confidence: 99%

Applications of Carbon Nanotubes in the Internet of Things Era

et al. 2021

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“…Biological skins are the first barriers that protect organisms and more importantly, they are highly integrated interfaces with multifunctional sensor networks, through which environmental information (e.g., tactile, changes in temperature or humidity) and other stimuli can be transduced to the nervous system by ionic or bioelectrical signal. [1] Inspired by the multitudinous features of the skins, many sensitive wearable electronic devices using various signal conductors, including electrical conductors (e.g., graphene sheets, [2] carbon nanotubes, [3] liquid metals, [4] and metallic nanowires [5] ) and ionic feedback. [20] Although the dual-signal photonic crystal sensors based on ionic conductors have been realized by photonic hydrogels, [20d] the lack of long-term durability cannot meet the requirement for practical applications.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Photonic Ionogels as Interactively Visual Ionic Skin with Optical and Electrical Synergy

Lyu

Wang

Peng

et al. 2021

Small

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conductors (e.g., hydrogels, [6] and ionogels [7] ), have been designed. Among these signal conductors, ionic conductors offer great potential in wearable sensing applications because of their various skin-like features, including flexible and stretchable natures, relatively high conductivity, and stimuli-responsiveness to the environment. [8] Especially, ionogels have recently attracted considerable attention due to their broad working temperature range, high ionic conductivity, nonvolatility, high thermal-, electrochemical-, and chemical stability, and nonflammability. [9] Ionogels are solid composites based on ionic liquids (ILs) and polymeric 3D networks. [10] Ionogels have been used in flexible electronics, such as energy storage and conversion devices, [11] actuators, [12] and sensors [13] . Ren et al. reported an IL-based click-ionogel that can stretch 13 times the original length and work over a wide temperature range (from −75 °C to 340 °C), which could be applied in flexible and sensing devices. [7a] Cao et al. fabricated an ionogel with transparency, mechanical robustness, and high stability through hydrogen bonding between poly(ethyl acrylate)-based elastomers and bis-(trifluoromethylsulfonyl)imide (TFSI) -based ILs, which can be used as a sensor to monitor mechanical motion. [7c] Although ionogels exhibited promising applications as strain sensors, they primarily provide a single electrical sensing signal, which cannot satisfy the increasing demands of intelligent interactive devices.Some organisms (e.g., chameleon, [14] cuttlefish, [15] leaf-tailed gecko, [16] and flatfish [17] ) can employ their skin as interactive interfaces, which can interact with the surroundings by color change for camouflage, communication, and courtship. [18] For example, when perceiving danger, chameleons can transmit the bioelectrical signal to the brain nerves to keep the body still and change skin colors simultaneously through tuning the lattice array of guanine nanocrystals inside iridophores, to give visual feedback to the surrounding ecosystem. [14] These superstructures within specialized cells form photonic crystals that can reflect a specific wavelength of incident light to display structural color. [19] By mimicking these color-changeable biological skins, some photonic crystal sensors with conductive capabilities have been prepared by incorporating electrical or ionic conductors, providing additional visual and intuitive signal With the ever-growing demands for flexible smart interactive electronics, it remains highly desirable yet challenging to design and fabricate interactive ionic skin with multiple signal synergistic outputs. Herein, high-performance photonic ionogels (PIGs) with excellent stability and synergy sensitivity are designed by locking a non-volatile and non-hygroscopic ionic liquid (IL), that is, 1-ethyl-3-methylimidazolium bis-(trifluoromethylsulfonyl)imide ([EMIm] [TFSI]), into photonic elastomers based on polymer networks of poly(ethylene glycol) phenyl ether acrylate (PEGPEA). Through m...

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“…Due to the increasing demand for portable communication devices, 1,2 flexible electronic equipment, 3–6 and electric vehicles, 7–9 there is an urgent need to develop flexible rechargeable energy storage and conversion devices such as supercapacitors, 10–12 lithium‐ion batteries (LIBs), 13–15 metal‐air batteries, and so on 16–18 . The separator is a part of these electrochemical energy devices that ensures ion transmission and maintains electrode stability and device safety 19–21 …”

Section: Introductionmentioning

confidence: 99%

A non‐Newtonian fluidic cellulose‐modified glass microfiber separator for flexible lithium‐ion batteries

Zhu

Cao

Cheng

et al. 2021

EcoMat

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The separator is of great importance for regulating ion transmission, maintaining electrode stability, and device safety in lithium‐ion batteries. Despite their many advantages, glass microfiber separators have shortcomings that often give rise to poor cycle performance and fatal short‐circuit risk when used in flexible batteries. Here, we propose the use of a scalable non‐Newtonian fluidic cellulose permeation‐diffusion strategy to develop a cellulose/glass microfiber composite film with an hourglass‐gradient structure. Due to the unique gradient morphology resulting from the presence of cellulose macromolecules, the as‐prepared composite film showed an improved surface mass density, adjustable pore structure, controllable ion transport, ideal mechanical flexibility, and robustness. When used as the separator in an assembled lithium‐ion battery, the composite film exhibited rapid ion diffusion and Li dendrite inhibition, which endowed the battery with excellent cycle stability (specific capacity of 108.5 mAh g−1 after 1000 cycles) and good rate performance. This composite film shows great potential application in flexible lithium‐ion batteries including but not limited to pouch cells.

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Permeable superelastic liquid-metal fibre mat enables biocompatible and monolithic stretchable electronics

Cited by 535 publications

References 46 publications

Applications of Carbon Nanotubes in the Internet of Things Era

Applications of Carbon Nanotubes in the Internet of Things Era

Bioinspired Photonic Ionogels as Interactively Visual Ionic Skin with Optical and Electrical Synergy

A non‐Newtonian fluidic cellulose‐modified glass microfiber separator for flexible lithium‐ion batteries

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