Poly(ionic liquid) hydrogels exhibiting superior mechanical and electrochemical properties as flexible electrolytes

Zhou, Tao; Gao, Xinpei; Dong, Bin; Sun, Na

doi:10.1039/c5ta08166a

Cited by 75 publications

(51 citation statements)

References 55 publications

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“…Apart from chemically crosslinked PVA, other synthetic hydrogels have also been reported as appropriate electrolyte materials . As for flexible supercapacitor electrolyte, the high ionic conductivity and mechanical flexibility are two key focuses.…”

Section: Hydrogel Electrolyte For Supercapacitorsmentioning

confidence: 99%

Hydrogel Electrolytes for Flexible Aqueous Energy Storage Devices

Wang

Tang

et al. 2018

Adv Funct Materials

473

339

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Hydrogel materials are receiving increasing research interest due to their intriguing structures that consist of a crosslinked network of polymer chains with interstitial spaces filled with solvent water. This feature endows the materials with the characteristics of being both wet and soft, making them ideal candidates for electrolyte materials for flexible energy storage devices, such as supercapacitors and rechargeable batteries that are under intensive studies nowadays. More importantly, the highly abundant and tunable chemistries of these hydrogels allow the introduction of novel functionalities into the existing hydrogels so that it is possible to fabricate unprecedented energy storage devices with additional functions. Here, the state-of-the-art advances of the hydrogel materials for flexible energy storage devices including supercapacitors and rechargeable batteries are reviewed. In addition, devices with various kinds of functions, such as self-healing, shape memory, and stretchability, are also included to stress the critical role of hydrogel materials. Furthermore, the challenges embedded in the current technologies are also highlighted and discussed with the hope to continually boost future research for the fast-developing field.

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Section: Hydrogel Electrolyte For Supercapacitorsmentioning

confidence: 99%

Hydrogel Electrolytes for Flexible Aqueous Energy Storage Devices

Wang

Tang

et al. 2018

Adv Funct Materials

473

339

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“…Recently a novel IL, 3‐(1‐vinyl‐3‐imidazolio)propanesulfonate/2‐acrylamido‐2‐methylpropanesulfonic acid, was prepared. The flexible poly(IL) hydrogel electrolytes obtained by photopolymerization of this monomer exhibited conductivities of over 1 mS cm −1 at room temperature and could be applied in flexible electronic devices, including fuel cells …”

Section: Applicationsmentioning

confidence: 99%

Photoinitiated polymerization in ionic liquids and its application

Andrzejewska

2016

Polymer International

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Ionic liquids (ILs) are low-melting organic salts often liquid at room temperature, whose unique properties are the reason of increasing interest for their applications as solvents, reaction media and functional additives. The exceptional properties of ILs have proved to be particularly useful in polymer science giving the potential to produce polymeric materials with improved properties or to immobilize ILs in polymer matrices while keeping their special characteristics. One of the possibilities is polymerization in ILs which can also affect positively polymerization reactions. An especially attractive technique is photopolymerization due to the ease of process control, short reaction time and ambient working temperature. This review gives a literature survey of developments in photopolymerization processes carried out in ILs as well as applications of these processes. It covers both the photopolymerization in ILs as well as photopolymerization of IL monomers. The first part presents a short overview of physicochemical and photochemical properties of ILs; it includes also photochemical reactions and photoinitiation of polymerization in ILs. The second part covers both the basic research (kinetics of photopolymerization including polymerization rate coefficients and polymerization of IL monomers) as well as applications of UV-induced polymerization in ILs.

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“…In ac ertain range, an increased content of cross-linker (Mo 7 )c an enhancet he mechanical strength of hydrogels, whereas excess cross-linker will reduce the strength of hydrogels. [28] Additionally,t he hydrogel network structures also affect the rheological properties. Hydrogels composed of elongated and aligned wormlike micelles possess am ore rigid network structure than that of hydrogels composed of spherical micelles.…”

Section: Rheological Propertiesmentioning

confidence: 99%

Polyoxometalate‐Based Photochromic Supramolecular Hydrogels with Highly Ordered Spherical and Cylindrical Micellar Nanostructures

Sun

et al. 2019

Chemistry A European J

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Polyoxometalates( POMs) have attracted much attention in the field of photochromic materials. However, POM-based photochromic supramolecular hydrogels with high transparencya nd good photochromic properties are seldom reported. In this work, ah omogenous,o ptically transparent, injectable, and photochromic supramolecular hydrogel was fabricated through the coassemblyo fa mmonium heptamolybdate (Mo 7 )a nd an imidazolium-based zwitterionica mphiphile (3-(1-hexadecyl-3-imidazolio)propanesulfonate (C 16 IPS)). The balance between electrostatic attraction and repulsion of Mo 7 clusters and zwitterionic amphiphiles enablest hem to coassemble into ah omogenousa nd transparents upramolecular hydrogel. By adjusting the molar ratio of C 16 IPS/Mo 7 ,o rdered spherical micelle-based hydrogels and alignedw ormlike micelle-based hydrogels can be obtained. Thei ncorporationo fM o 7 into hydrogels endows these hydrogels with excellent photochromic properties. Specifically,a fter coassembly with C 16 IPS, the photochromic abilityo fh ydrogels is significantly enhanced comparedw ith that of ap ure aqueous solutiono fM o 7 .T hese hydrogels exhibit great potential applications as photochromic materials for the recording of rewritable information.[a] N.

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Poly(ionic liquid) hydrogels exhibiting superior mechanical and electrochemical properties as flexible electrolytes

Abstract: Flexible poly(ionic liquid) hydrogels with polymerized anions and cations exhibit superior electrochemical properties, which can remain stable under different deformations.

Cited by 75 publications

References 55 publications

Hydrogel Electrolytes for Flexible Aqueous Energy Storage Devices

Hydrogel Electrolytes for Flexible Aqueous Energy Storage Devices

Photoinitiated polymerization in ionic liquids and its application

Polyoxometalate‐Based Photochromic Supramolecular Hydrogels with Highly Ordered Spherical and Cylindrical Micellar Nanostructures

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