Ionogel-based flexible stress and strain sensors

Zhao, Gengrui; Liu, Bo; Wang, Honggang; Yang, Baoping; Li, Zhenyu; Ren, Jin; Gao, Guanzhen; Liu, Wenguang; Yang, Sui; Li, Linlin

doi:10.1080/19475411.2021.1958085

Cited by 20 publications

(11 citation statements)

References 95 publications

(240 reference statements)

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“…Another type of IL-based gel classification is organic, inorganic, and hybrid organic–inorganic IL-based gels [ 16 ]. Until now, various gel techniques to confine and immobilize ILs into a three dimensional organic or inorganic matrix have been reported, such as the sol–gel process, polymerization, photopolymerization, and solvent casting [ 16 , 17 , 18 ]. Among them, the sol–gel process has gained much interest for producing IL-based gel electrolytes with enhanced mechanical properties for numerous electronic applications related to lithium-ion batteries, supercapacitors, and other electrochemical devices [ 15 , 18 , 19 , 20 ].…”

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

“…Until now, various gel techniques to confine and immobilize ILs into a three dimensional organic or inorganic matrix have been reported, such as the sol–gel process, polymerization, photopolymerization, and solvent casting [ 16 , 17 , 18 ]. Among them, the sol–gel process has gained much interest for producing IL-based gel electrolytes with enhanced mechanical properties for numerous electronic applications related to lithium-ion batteries, supercapacitors, and other electrochemical devices [ 15 , 18 , 19 , 20 ]. Moreover, the sol–gel derived IL-based gels have been reported to be used in electrochromic, drug-delivery, photo-stimuli, and luminescence systems in recent years [ 21 , 22 ].…”

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

“…Moreover, the sol–gel derived IL-based gels have been reported to be used in electrochromic, drug-delivery, photo-stimuli, and luminescence systems in recent years [ 21 , 22 ]. Meanwhile, polymerization leading to the formation of micro-patternable gel electrolytes, has received significant attention due to its promising application in microdevices such as microcapacitors, flexible sensors, and 3D printing technology [ 18 , 23 ]. In the following section, several ways for obtaining IL-based electrolytes are presented.…”

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

“…There have been a number of reviews on the preparation of IL-based gels by in situ polymerization or cross-linking of monomers dissolved in IL [ 13 , 14 , 16 , 17 , 18 ]. Generally, the in situ polymerization process involves dissolving a polymerizable monomer in ILs with or without the use of a cosolvent and followed by the removal of the cosolvent.…”

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

See 3 more Smart Citations

Ionic Liquid-Based Gels for Applications in Electrochemical Energy Storage and Conversion Devices: A Review of Recent Progress and Future Prospects

Sultana

Ahmed

Jiwanti

et al. 2021

Gels

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Ionic liquids (ILs) are molten salts that are entirely composed of ions and have melting temperatures below 100 °C. When immobilized in polymeric matrices by sol–gel or chemical polymerization, they generate gels known as ion gels, ionogels, ionic gels, and so on, which may be used for a variety of electrochemical applications. One of the most significant research domains for IL-based gels is the energy industry, notably for energy storage and conversion devices, due to rising demand for clean, sustainable, and greener energy. Due to characteristics such as nonvolatility, high thermal stability, and strong ionic conductivity, IL-based gels appear to meet the stringent demands/criteria of these diverse application domains. This article focuses on the synthesis pathways of IL-based gel polymer electrolytes/organic gel electrolytes and their applications in batteries (Li-ion and beyond), fuel cells, and supercapacitors. Furthermore, the limitations and future possibilities of IL-based gels in the aforementioned application domains are discussed to support the speedy evolution of these materials in the appropriate applicable sectors.

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Section: Preparation Of Il-based Gelmentioning

confidence: 99%

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

See 2 more Smart Citations

Ionic Liquid-Based Gels for Applications in Electrochemical Energy Storage and Conversion Devices: A Review of Recent Progress and Future Prospects

Sultana

Ahmed

Jiwanti

et al. 2021

Gels

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show abstract

“…If swollen with ionic liquids, they are referred to as ionogels. Ionogels tend to have greater stability and durability in air than hydrogels because they are not subject to water evaporation [3]. Neutral gels generally enable high mobility for a wide range of chemical species, which allows them to form the core of many ionic devices.…”

Section: Neutral Gelsmentioning

confidence: 99%

Soft Ionics: Governing Physics and State of Technologies

Tepermeister

Bosnjak²,

Dai³

et al. 2022

Front. Phys.

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Soft ionic materials combine charged mobile species and tailored polymer structures in a manner that enables a wide array of functional devices. Traditional metal and silicon electronics are limited to two charge carriers: electrons and holes. Ionic devices hold the promise of using the wide range of chemical and molecular properties of mobile ions and polymer functional groups to enable flexible conductors, chemically specific sensors, bio-compatible interfaces, and deformable digital or analog signal processors. Stand alone ionic devices would need to have five key capabilities: signal transmission, energy conversion/harvesting, sensing, actuation, and signal processing. With the great promise of ionically-conducting materials and ionic devices, there are several fields working independently on pieces of the puzzle. These fields range from waste-water treatment research to soft robotics and bio-interface research. In this review, we first present the underlying physical principles that govern the behavior of soft ionic materials and devices. We then discuss the progress that has been made on each of the potential device components, bringing together findings from a range of research fields, and conclude with discussion of opportunities for future research.

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Ionofibers: Ionically Conductive Textile Fibers for Conformal i‐Textiles

Huniade

Melling

Vancaeyzeele

et al. 2022

Adv Materials Technologies

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textiles are so unique. Their properties are often summarized as light-weight, flexible, stretchable, comfortable, aesthetically pleasing, durable, and reusable. [1] All of these properties are the results of how conformal textile fibers and, ultimately, fabrics are.By conformal, we mean the ability for an object to mold or shape dynamically after its handling; in other words and to a certain extent, we mean their geometrical adaptability. Conformality is an aim for wearable electronics, an aim beyond flexibility and stretchability. [2] This aim is especially relevant for e-textiles as there is a need of electroconductive fibers that can be processed into seamlessly integrated textiles, that is the deepest level of integration of fibers in textiles through fabric manufacturing processes like weaving and knitting. [3] The electronically conductive properties of these fibers are provided by the charge carriers of conductive materials that are commonly electrons and holes from metals or electroconductive plastics based on doped conductive polymers and electroconductive fillers such as metal particles or carbon allotropes. [4] As for today, conductive fibers can be stiff, brittle, difficult to process in fabrics and not durable enough as a product. [3,5] This is due to the inherent properties of the electronic conductive materials. [5,6] Therefore, it requires a laborious balance between desired properties to produce conformal e-textiles.On the opposite, while living matter is soft, it also conducts electrical signals, and this conduction mostly involves ions as charge carriers. This observation is shifting the paradigm of electron-based devices to the rise of ion-based devices using soft ionic conductors. [7] We categorize all consistent substances in which ions are the predominant charge carriers as ionically conductive mediums or ICMs. Well-known examples of ICMs are electrolyte solutions, i.e., free ions dissolved in a polar solvent, or ionic liquids (ILs). [8] ILs are liquids comprised entirely of ions, [9] often with melting points lower than 100 °C, some even below room temperature. ILs have many advantages compared to electrolyte solutions, like higher thermal and electrochemical stability, as well as nonvolatility. Due to their undefined shape, liquid ICMs lack the self-standing ability which led to the development of quasi solid-state electrolytes and more specifically ionogels. Ionogels are ICMs where an IL is entrapped by a solid matrix such as a polymer network. In these systems, With the rise of ion-based devices using soft ionic conductors, ionotronics show the importance of matching electronic and biological interfaces. Since textiles are conformal, an essential property for matching interfaces, light-weight and comfortable, they present as an ideal candidate for a new generation of ionotronics, i-textiles. As fibers are the building blocks of textiles, ionically conductive fibers, named ionofibers, are needed. However, ionofibers are not yet demonstrated to fulfill the fabric manufacturing requirem...

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Ionogel-based flexible stress and strain sensors

Cited by 20 publications

References 95 publications

Ionic Liquid-Based Gels for Applications in Electrochemical Energy Storage and Conversion Devices: A Review of Recent Progress and Future Prospects

Ionic Liquid-Based Gels for Applications in Electrochemical Energy Storage and Conversion Devices: A Review of Recent Progress and Future Prospects

Soft Ionics: Governing Physics and State of Technologies

Ionofibers: Ionically Conductive Textile Fibers for Conformal i‐Textiles

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