Extreme properties of double networked ionogel electrolytes for flexible and durable energy storage devices

Rana, Harpalsinh H.; Park, Jeong Hee; Ducrot, Étienne; Park, Hun; Kota, Manikantan; Han, Tae Hee; Lee, Jun Young; Kim, Jaeyun; Kim, Ji Heung; Howlett, Patrick C.; Forsyth, Maria; MacFarlane, Douglas R.; Park, Ho Seok

doi:10.1016/j.ensm.2018.11.008

Cited by 65 publications

(52 citation statements)

References 51 publications

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“…[ 178 ] Ionogel electrolytes could be used to design the flexible supercapacitors with a wide potential window with high ionic conductivity. [ 179 ] It is composed of an IL, polymer, and organic–inorganic hybrid material. [ 15 ] In a recent study, an aligned and porous ionogel SE was engineered through self‐initiated cyropolymerization with solvent replacement and directional freezing technique for the high‐temperature supercapacitors.…”

Section: Recent Advancesmentioning

confidence: 99%

“…In a similar study, a flexible and durable double‐networked (DN) ionogel electrolyte was developed for the high‐temperature supercapacitor. [ 179 ] The schematics of DN ionogel electrolyte synthesis for the first and second network are shown in Figure 28 a,b, respectively. DN polymer matrix was fabricated through a two‐step thermally initiated free radical polymerization using densely cross‐linked PVA (C‐PVA) and coarsely cross‐linked poly(2‐hydroxyethyl methacrylate) (HEMA).…”

Section: Recent Advancesmentioning

confidence: 99%

“…Schematic of DN ionogel electrolytes synthesis (C, cross‐linked; pC, partially cross‐linked): a,b) reactions for first and second networks. [ 179 ] Reproduced with permission. [ 179 ] Copyright 2019, Elsevier.…”

Section: Recent Advancesmentioning

confidence: 99%

“…The durability and performance of high‐temperature supercapacitor at 1 A g −1 : a) temperature‐dependent cyclic stability, b) cyclic stability under temperature swing test from 180 to 30 °C, and the temperature was changed for every 200 cycles, c) stability for 500 cycles at various bending angles and 150 °C, d) long‐term stability for 100 000 cycles at 150 °C, e) self‐discharge characteristics of the 2 h charged device from 2 to 1 V, f) voltage profiles under normal (30 °C) and bending conditions (120 °C) for three continuous cycles, and g) photographs of the device operation at 30 and 120 °C with solar cells under bending condition. [ 179 ] Reproduced with permission. [ 179 ] Copyright 2019, Elsevier.…”

Section: Recent Advancesmentioning

confidence: 99%

“…A thermometer was powered by the (30 °C) and bending conditions (120 °C) for three continuous cycles, and g) photographs of the device operation at 30 and 120 °C with solar cells under bending condition. [179] Reproduced with permission. [179] Copyright 2019, Elsevier.…”

Section: Ionogelsmentioning

confidence: 99%

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Solid Electrolytes for High‐Temperature Stable Batteries and Supercapacitors

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Reports of recent fire accidents in the electronics and electric vehicles (EVs) industries show that thermal runaway (TR) reactions are a key consideration for the industry. Utilization of solid electrolytes (SEs) could be an important solution in to the TR issues connected to exothermic electrochemical reactions. Data on the thermal stability of modern SEs, ionic transport mechanisms, kinetics, thermal models, recent advances, challenges, and future prospects are presented in this review. Ceramic polymer nanocomposites are the most appropriate SEs for high‐temperature stable batteries (in the range of 80–200 °C). Hydrogels and ionogels can be employed as stable, flexible, and mechanically durable SEs for antifreeze (up to –50 °C) and high‐temperature (up to 200 °C) applications in supercapacitors. Besides the thermal safety features, SEs can also prolong the lifecycle of energy storage devices in next‐generation EVs, space devices, aviation gadgets, defense tools, and mobile electronics.

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Section: Recent Advancesmentioning

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Ionogels: Preparation, Properties and Applications

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Ionogels, composed of ionic liquids and supporting networks, possess a plethora of exceptional properties, including nonvolatility, remarkable thermal and electrochemical stability, elevated mechanical strength, as well as outstanding ionic conductivity. Based on these extraordinary characteristics, ionogels have found extensive applications in diverse fields encompassing functional materials, sensors, soft electronics, solid electrolytes, and biomedicine. In recent years, ionogels have witnessed significant advancements and emerged as a highly popular subject matter. Consequently, this review provides a comprehensive overview of the latest progress made in the realm of ionogels. The preparation methods of ionogels are initially introduced following a concise introduction. Subsequently, the properties of ionogels, encompassing mechanical properties, high and low temperature resistance, ionic conductivity, stimuli‐response properties, self‐healing properties, recyclability and their structure‐property relationships, are comprehensively discussed. Moreover, recent advancements in the utilization of ionogels in solid electrolytes, ionic skins, soft electronics, adhesions and other domains are also elaborated upon extensively. Finally, after a succinct summary, challenges and prospects regarding the future development of ionogels are thoroughly deliberated.

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Material design based on the assembly of functional units has demonstrated tremendous technical and commercial potential. Among others, polymers are identified to be an ideal building block due to their abundant functional groups, high programmability, and great biocompatibility. In this review, introducing recently developed advanced materials enabled by rationally designed polymer self‐assembly are focussed. The working principle of typical intermolecular interactions to shape nano‐patterns and structural heterogeneity is first explained in detail. Following that, methods to prepare advanced materials and their characteristic properties are discussed. The superior performance of polymer assemblies renders numerous potential applications in ultra‐tough devices, soft robotics, electronics, sensors, and biomedicine. A brief account of representative examples is highlighted and a perspective on this field is provided at the end.

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Extreme properties of double networked ionogel electrolytes for flexible and durable energy storage devices

Cited by 65 publications

References 51 publications

Solid Electrolytes for High‐Temperature Stable Batteries and Supercapacitors

Solid Electrolytes for High‐Temperature Stable Batteries and Supercapacitors

Ionogels: Preparation, Properties and Applications

Convert Polymer Self‐Assembly Nanostructures into Target Functional Materials: An Art of Embattling Molecules

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