Mechanically robust and thermally stable electrochemical devices based on star-shaped random copolymer gel-electrolytes

Hwang, Heedong; Lee, Jae Yong; Park, So Yeong; Seo, Yeseong; Kim, Yong Min; Kim, Jin Kon; Moon, Hong Chul

doi:10.1016/j.jiec.2020.04.018

Cited by 7 publications

(6 citation statements)

References 61 publications

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“…Although cutting-edge displays such as deformable organic light-emitting diodes (OLEDs) have been developed, there remains great demand to create new types of displays with unique features. One possible candidate is functionalized gel-based electrochemical displays such as electrochemiluminescent (ECL, emissive type) and electrochromic (EC, reflective type) displays. ,,,− Both can be fabricated straightforwardly by inserting functional ion gels between two electrodes without additional layers (e.g., hole/electron blocking layers). The energy levels of the electrodes are not critical for operating these devices.…”

Section: Versatile Applicability Of Ion Gels In Electrochemical Elect...mentioning

confidence: 99%

Functional Ion Gels: Versatile Electrolyte Platforms for Electrochemical Applications

et al. 2021

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Ion gels consisting of room-temperature ionic liquids and polymer gelators are considered attractive solid-state electrolyte platforms for functional electrochemical applications due to their tunable electrochemical/mechanical properties, nonvolatility even in a vacuum, and compatibility with various solution processes. Accordingly, a number of studies have been reported on improving the functionality of ion gels and their use in diverse applications. In this Perspective, we highlight recent representative advances in the development of functional gels based on judiciously designed copolymer gelators or prepared by incorporating redox species. In addition, we introduce versatile applicability of ion gels in a variety of applications including electrochemical displays, smart sensory systems, and energy generation/storage systems.

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Section: Versatile Applicability Of Ion Gels In Electrochemical Elect...mentioning

confidence: 99%

Functional Ion Gels: Versatile Electrolyte Platforms for Electrochemical Applications

et al. 2021

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“…IL-based gels, which are composed of polymeric gelators and ILs, are another potential platform that can offer many possible approaches, with vast research scopes. The properties of the co-polymer gelators are a critical parameter that is directly related to gel performance [ 57 , 58 , 59 , 60 , 61 ]. Gelation should be accomplished with the lowest quantity of polymer possible to generate highly conductive gels.…”

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

“…When combined with IL, the IL-soluble segments swell, forming ion conductive channels, while the components that are insoluble in ILs aggregate to limit enthalpically unfavorable interaction with the ILs. Various copolymers such as block [ 62 , 63 , 64 , 65 ], star [ 57 , 58 ], and random [ 59 , 60 , 61 ] types of ion gel have been proposed based on these requirements.…”

Section: Preparation Of Il-based Gelmentioning

confidence: 99%

“…Besides LICs, in 2020, Xing et al introduced solid-state sodium ion capacitors using a MoS 2 /CNT working electrode and sodium foil counter-electrode in P(VDF-HFP)/EMIMBF 4 /NaTFSI IL-based gel electrolyte [ 57 , 58 ]. The sodium ion capacitors showed profound performances with an outstanding cyclic stability of 81.2% after 8000 cycles at above 30 °C.…”

Section: Applications Of Il-based Gelsmentioning

confidence: 99%

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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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“…Hydrogels are one of the most prevalent structural electrolytes due to their low cost, natural compatibility with biological systems, and high ionic conductivity. 1,2,16,17 However, water-containing gel electrolytes are susceptible to dehydration and restrict the electrochemical range to ±1.2 V. 18,19 By contrast, ionogels 13,20,21 and ionoelastomers 19,22−24 provide wider electrochemical windows, higher thermal stability, nonvolatility, and modular chemistry. 25 Polymerized ionic liquids or poly(ionic liquids) (pILs) are unique candidates for structural electrolytes because their highly charged backbones increase mobile ion loading without significantly degrading mechanical properties.…”

Section: ■ Introductionmentioning

confidence: 99%

Architected Poly(ionic liquid) Composites with Spatially Programmable Mechanical Properties and Mixed Conductivity

Oh,

Kane,

Truby

2024

ACS Appl. Mater. Interfaces

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Structural electrolytes present advantages over liquid varieties, which are critical to myriad applications. In particular, structural electrolytes based on polymerized ionic liquids or poly(ionic liquids) (pILs) provide wide electrochemical windows, high thermal stability, nonvolatility, and modular chemistry. However, current methods of fabricating structural electrolytes from pILs and their composites present limitations. Recent advances have been made in 3D printing pIL electrolytes, but current printing techniques limit the complexity of forms that can be achieved, as well as the ability to control mechanical properties or conductivity. We introduce a method for fabricating architected pIL composites as structural electrolytes via embedded 3D (EMB3D) printing. We present a modular design for formulating ionic liquid (IL) monomer composite inks that can be printed into sparse, lightweight, free-standing lattices with different functionalities. In addition to characterizing the rheological and mechanical behaviors of IL monomer inks and pIL lattices, we demonstrate the self-sensing capabilities of our printed structural electrolytes during cyclic compression. Finally, we use our inks and printing method to spatially program self-sensing capabilities in pIL lattices through heterogeneous architectures as well as ink compositions that provide mixed ionic-electronic conductivity. Our free-form approach to fabricating structural electrolytes in complex, 3D forms with programmable, anisotropic properties has broad potential use in next-generation sensors, soft robotics, bioelectronics, energy storage devices, and more.

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Mechanically robust and thermally stable electrochemical devices based on star-shaped random copolymer gel-electrolytes

Cited by 7 publications

References 61 publications

Functional Ion Gels: Versatile Electrolyte Platforms for Electrochemical Applications

Functional Ion Gels: Versatile Electrolyte Platforms for Electrochemical Applications

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

Architected Poly(ionic liquid) Composites with Spatially Programmable Mechanical Properties and Mixed Conductivity

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