Functionalized Agarose Self‐Healing Ionogels Suitable for Supercapacitors

Trivedi, Tushar J.; Bhattacharjya, Dhrubajyoti; Yu, Jong‐Sung; Kumar, Arvind

doi:10.1002/cssc.201500648

Cited by 109 publications

(98 citation statements)

References 55 publications

(46 reference statements)

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“…A self-healing ionogel from a protic-aprotic mixed-IL system (1-butyl-3-methyl-imidazolium chloride and N-(2-hydroxyethyl) ammonium formate) was successfully prepared. [151] As shown in Figure 6e, the ionogel demonstrated superior self-healing property. The carbanilated agarose ionogels proved suitable as a flexible solid electrolyte for activated-carbon-based supercapacitors.…”

Section: Gpes With Self-healing Abilitymentioning

confidence: 87%

“…Reproduced with permission. [151] To simultaneously realize the self-healability and high stretchability, a polymer electrolyte comprising of polyacrylic acid dual crosslinked by hydrogen bonding and vinyl hybrid silica nanoparticles [154] was developed (Figure 6f). The polymer electrolyte demonstrated tunable ionic conductivity, self-healability, and high stretchability (over 3700% strain).…”

Section: Gpes With Self-healing Abilitymentioning

confidence: 99%

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Gel Polymer Electrolytes for Electrochemical Energy Storage

Cheng

Pan

Zhao

et al. 2017

Advanced Energy Materials

755

562

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storage devices with adjustable shapes and high flexibility, which is promising for the burgeoning portable and wearable electronics. [7][8][9] Furthermore, the flexibility and elasticity of GPEs are also prone to tolerate the volume change of electrode materials and the dendrites of lithium metal during charge and discharge processes. [10][11][12][13] As a consequence, GPEs have become one of the most desirable alternatives among various electrolytes for the electrochemical energy storage devices, and significant progress has been made in lithium-ion batteries (LIBs), supercapacitors (SCs), lithium-oxygen (Li-O 2 ) batteries as well as the other kinds of electrochemical energy storage devices, such as sodium-ion batteries, lithium-sulfur batteries, fuel cells, and zinc-air batteries. [14][15][16] In order to meet the requirements of wearable devices for flexibility and deformability, more special GPEs with tough, [17] stretchable, [18] and compressible [19] functionalities have been also developed.Typically, a polymeric framework is adopted in GPEs as host material, providing high mechanical integrity. Several criteria for a good polymer host lie in: [20][21][22] (i) fast segmental motion of polymer chain; (ii) special groups promoting the dissolution of salts; (iii) low glass transition temperature (T g ); (iv) high molecular weight; (v) wide electrochemical window; (vi) high degradation temperature. Within the framework, the salts in the GPEs serve as the sources of the charge carriers, which are generally required to have large anions and low dissociation energy for easier dissociating-induced free/mobile ions. According to the types of electrolytes, there are four categories of GPEs based on proton, [23] alkaline, [24] conducting salts, and ionic liquids (ILs). [25] The criteria for an appropriate electrolyte include: [26][27][28] (i) good dissociation without forming ion pairs or ion aggregation; (ii) high thermal, chemical, and electrochemical stability; (iii) high ionic conductivity. In order to dissolve both the polymer hosts and electrolytic salts, the organic/ aqueous solvents are introduced to provide the medium for ionic conduction. A good solvent should simultaneously have high dielectric constant (ɛ > 15), donor number for more dissociation of ion and chemical and electrochemical stability. Organic solvents normally include ethylene carbonate (EC), propylene carbonate (PC), diethyl carbonate (DEC), dimethyl carbonate (DMC), dimethyl formamide (DMF), dimethyl sulphoxide, ethyl methyl carbonate, and tetrahydrofuran.To prepare a high-performance GPE, it is essential to select the species of host polymer, solvent, and electrolytic salt, and then blend them by solution or melt processes, such as casting With the booming development of flexible and wearable electronics, their safety issues and operation stabilities have attracted worldwide attentions. Compared with traditional liquid electrolytes, gel polymer electrolytes (GPEs) are preferred due to their higher safety and adaptability to the design of ...

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Section: Gpes With Self-healing Abilitymentioning

confidence: 87%

Section: Gpes With Self-healing Abilitymentioning

confidence: 99%

Gel Polymer Electrolytes for Electrochemical Energy Storage

Cheng

Pan

Zhao

et al. 2017

Advanced Energy Materials

755

562

View full text Add to dashboard Cite

show abstract

“…[100][101][102] Among these studies, efforts were mainly made concerning the recovery of electrode conductivities and integrity of the overall the configuration. Furthermore, the conventional PVA-based electrolytes with relatively low self-repair capability were frequently employed, which likely limited the overall self-healing performance of the corresponding supercapacitors.…”

Section: Self-healing Abilities In Response To External Mechanical Damentioning

confidence: 99%

“…Consequently, novel polymeric electrolytes which are intrinsically self-healable have been studied further. [100][101][102] Recently, Huang et al has reported a new self-healing electrolyte composed of polyacrylic acid and hybrid vinyl-silica nanoparticles (VSNPs-PAA) (Figure 5b). [103] The PAA polymer chains provided abundant reversible intermolecular hydrogen bonding, while the VSNPs reinforced the mechanical properties and covalently crosslinked the PAA polymer chains.…”

Section: Self-healing Abilities In Response To External Mechanical Damentioning

confidence: 99%

Smart Electrochemical Energy Storage Devices with Self‐Protection and Self‐Adaptation Abilities

Yang

Wang

et al. 2017

Advanced Materials

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Currently, with booming development and worldwide usage of rechargeable electrochemical energy storage devices, their safety issues, operation stability, service life, and user experience are garnering special attention. Smart and intelligent energy storage devices with self‐protection and self‐adaptation abilities aiming to address these challenges are being developed with great urgency. In this Progress Report, we highlight recent achievements in the field of smart energy storage systems that could early‐detect incoming internal short circuits and self‐protect against thermal runaway. Moreover, intelligent devices that are able to take actions and self‐adapt in response to external mechanical disruption or deformation, i.e., exhibiting self‐healing or shape‐memory behaviors, are discussed. Finally, insights into the future development of smart rechargeable energy storage devices are provided.

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“…[223,224] Extensive work has been done to demonstrate self-healing dielectric material [225] and gels, [226,227] however it is challenging to fabricate a self-healing current collector for the realization of a completely self-healing transparent and stretchable electronic device. It is extremely difficult to achieve selfhealing ability with electronic conductors.…”

Section: Challenges and Outlookmentioning

confidence: 99%

Deformable and Transparent Ionic and Electronic Conductors for Soft Energy Devices

Park

Parida

Lee

2017

Advanced Energy Materials

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The recent boom in deformable or stretchable electronics, flexible transparent displays/screens, and their integration into the human body has facilitated the development of multifunctional energy devices that are stretchable, transparent, wearable, and/or biocompatible while meeting the energy or power requirements. The development of soft energy systems begins with the preparation of relevant conductors and the design of innovative device configurations. In this study, recent advances and trends in stretchable and transparent electronic and ionic conductors are reviewed coupled with the growing efforts to use them for soft energy storage and conversion systems. Stretchable transparent ionic conductors present possibilities for use as current collectors and electrolytes in soft electronic/energy devices, providing novel insight into biofriendly systems for an effective human–machine interaction. Moreover, representative examples that demonstrate soft energy devices based on stretchable transparent ionic/electronic conductors are discussed in detail. Furthermore, the challenges and perspectives of developing novel stretchable transparent conductors and device configurations with tailored features are also considered.

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Functionalized Agarose Self‐Healing Ionogels Suitable for Supercapacitors

Cited by 109 publications

References 55 publications

Gel Polymer Electrolytes for Electrochemical Energy Storage

Gel Polymer Electrolytes for Electrochemical Energy Storage

Smart Electrochemical Energy Storage Devices with Self‐Protection and Self‐Adaptation Abilities

Deformable and Transparent Ionic and Electronic Conductors for Soft Energy Devices

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