Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

Kim, Eunhwan; Han, Juyeon; Ryu, Sam Gon; Choi, Youngkyu; Yoo, Jeeyoung

doi:10.3390/ma14144000

Cited by 46 publications

(28 citation statements)

References 157 publications

(201 reference statements)

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“…Ionic liquid (IL) electrolytes exist as liquid state, and consist of organic anions and cations, coupled with soluble K salt. [20] The opposite ions are achieved by the thermal melting rather than solvation by solvent. They are demonstrated to possess F I G U R E  Classifications and characteristics of K-based batteries excellent electrochemical and thermal stability, low volatility, and fire resistance.…”

Section:  Electrolytes For K-based Batteries  Classifications Of E...mentioning

confidence: 99%

Electrolyte formulation strategies for potassium‐based batteries

et al. 2022

Exploration

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Potassium (K)-based batteries are viewed as the most promising alternatives to lithiumbased batteries, owing to their abundant potassium resource, lower redox potentials (−2.97 V vs. SHE), and low cost. Recently, significant achievements on electrode materials have boosted the development of potassium-based batteries. However, the poor interfacial compatibility between electrode and electrolyte hinders their practical. Hence, rational design of electrolyte/electrode interface by electrolytes is the key to develop K-based batteries. In this review, the principles for formulating organic electrolytes are comprehensively summarized. Then, recent progress of various liquid organic and solidstate K + electrolytes for potassium-ion batteries and beyond are discussed. Finally, we offer the current challenges that need to be addressed for advanced K-based batteries. K E Y WO R D Sfundamentals of organic electrolytes, liquid electrolytes, potassium-based batteries, solid-state electrolytes This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section:  Electrolytes For K-based Batteries  Classifications Of E...mentioning

confidence: 99%

Electrolyte formulation strategies for potassium‐based batteries

et al. 2022

Exploration

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“…An emerging way to achieve high oxidation stability (>5.5 V vs. Li + /Li) for a graphite and Li metal anode was performed by Qian et al 4 M LiTFSI salt was added to IL:1-Methyl-1-propyl-3-fluoropyrrolidinium and bis(fluorosulfonyl)-imide ([PfMpyr][FSI]), resulting in a higher potential window [ 66 ]. Howlett et al [ 67 ] manufactured a high-energy-density LIB using LiFSI salt and N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide anion ([C 3 mpyr][FSI]) that eliminated dendritic growth despite the rapid rate of charging. In terms of stability, although IL-doped electrolytes show lower ionic conductivity than traditional carbonate electrolytes (8–12 S cm −1 ), the entire performance of IL electrolyte-based LIB remains almost constant and shows rather higher stability.…”

Section: Types Of Electrolytesmentioning

confidence: 99%

The Impact of Polymer Electrolyte Properties on Lithium-Ion Batteries

et al. 2022

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In recent decades, the enhancement of the properties of electrolytes and electrodes resulted in the development of efficient electrochemical energy storage devices. We herein reported the impact of the different polymer electrolytes in terms of physicochemical, thermal, electrical, and mechanical properties of lithium-ion batteries (LIBs). Since LIBs use many groups of electrolytes, such as liquid electrolytes, quasi-solid electrolytes, and solid electrolytes, the efficiency of the full device relies on the type of electrolyte used. A good electrolyte is the one that, when used in Li-ion batteries, exhibits high Li+ diffusion between electrodes, the lowest resistance during cycling at the interfaces, a high capacity of retention, a very good cycle-life, high thermal stability, high specific capacitance, and high energy density. The impact of various polymer electrolytes and their components has been reported in this work, which helps to understand their effect on battery performance. Although, single-electrolyte material cannot be sufficient to fulfill the requirements of a good LIB. This review is aimed to lead toward an appropriate choice of polymer electrolyte for LIBs.

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“…Continuous progress and comprehensive knowledge of the development of functional materials are essential to meet the demands of the rapidly growing energy sectors. Polymeric gels are a type of soft material that is gaining increasing attention in the electrochemical energy storage, conversion, sensing, gas sorption, and biomedical sectors [ 1 , 2 , 3 , 4 , 5 , 6 ]. Gels are three-dimensional networks of cross-linked polymeric units in liquid systems with variable pore sizes that exhibit exceptional structural derivability, including high water/solvent swellability, materials permeability, and tunable mechanical elasticity [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

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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Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

Cited by 46 publications

References 157 publications

Electrolyte formulation strategies for potassium‐based batteries

Electrolyte formulation strategies for potassium‐based batteries

The Impact of Polymer Electrolyte Properties on Lithium-Ion Batteries

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

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