EMIMBF4 in ternary liquid mixtures of water, dimethyl sulfoxide and acetonitrile as “tri-solvent-in-salt” electrolytes for high-performance supercapacitors operating at -70 °C

Lu, Xuejun; Vicent-Luna, José Manuel; Calero, Sofı́a; Madero-Castro, Rafael M.; Gutiérrez, Marı́a C.; Ferrer, M. Luisa; Monte, Francisco del

doi:10.1016/j.ensm.2021.05.026

Cited by 32 publications

(32 citation statements)

References 122 publications

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“…The mechanism of reducing the freezing point of aqueous electrolyte with additive or cosolvent is based on destroying HBs within the water network by the competitive interaction between additives/cosolvents and water molecules. Widely used antifreezing additives or cosolvents include EG ( 23 , 27 , 62 , 63 ), MeOH ( 24 ), 1,3-dioxolane (DOL) ( 64 ), DMSO ( 65 – 67 ), AN ( 68 , 69 ), etc.…”

Section: Discussionmentioning

confidence: 99%

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

et al. 2022

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As one of the most competitive candidates for the next-generation energy storage systems, the emerging rechargeable zinc metal battery (ZMB) is inevitably influenced by beyond-room-temperature conditions, resulting in inferior performances. Although much attention has been paid to evaluating the performance of ZMBs under extreme temperatures in recent years, most academic electrolyte research has not provided adequate information about physical properties or practical testing protocols of their electrolytes, making it difficult to assess their true performance. The growing interest in ZMBs is calling for in-depth research on electrolyte behavior under harsh practical conditions, which has not been systematically reviewed yet. Hence, in this review, we first showcase the fundamentals behind the failure of ZMBs in terms of temperature influence and then present a comprehensive understanding of the current electrolyte strategies to improve battery performance at harsh temperatures. Last, we offer perspectives on the advance of ZMB electrolytes toward industrial application.

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Section: Discussionmentioning

confidence: 99%

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

et al. 2022

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“…[ 58 ] Interestingly, eutectic electrolytes consist of concentrated salts sometimes equally treated as eutectic‐in‐salt (EIS) solutions because of the unique high‐concentration feature, capturing the whole structure of formed clusters and aggregates of anion networks. [ 25–26,59 ]…”

Section: Definition Of Eutectic Electrolytesmentioning

confidence: 99%

“…[58] Interestingly, eutectic electrolytes consist of concentrated salts sometimes equally treated as eutectic-in-salt (EIS) solutions because of the unique high-concentration feature, capturing the whole structure of formed clusters and aggregates of anion networks. [25][26]59] Dielectric relaxation spectroscopy (DRS), is a versatile tool for investigating the dipolar and ionic dynamics through polarization response of the material at the applied oscillating electric field. [60] DRS allows the correlations between microscopic mechanisms and macroscopic physical properties, including particular eutectic characteristics of ionic conductivity, viscosity, eutectic composition, etc.…”

Section: Detection Techniquesmentioning

confidence: 99%

“…[ 25 ] Recently, acetonitrile (CH 3 CN) cosolvent added in AEIS helps form a new “tri‐solvent‐in‐salt” system, which offers formation of an electrochemically active hydrogen bond (H‐bond) complex as enhanced eutectic electrolytes. [ 26 ] It was also found that Li‐based DESs served as remarkable candidates to replace IL or Li salt mixtures in LIBs because of their single‐cation species, supporting a relatively high Li + transference number. [ 27 ] Xu et al.…”

Section: Introductionmentioning

confidence: 99%

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Eutectic Electrolytes Chemistry for Rechargeable Zn Batteries

Hansen

et al. 2022

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Rechargeable zinc batteries (RZBs) have proved to be promising candidates as an alternative to lithium‐ion batteries due to their low cost, inherent safety, and environmentally benign features. While designing cost‐effective electrolyte systems with excellent compatibility with electrode materials, high energy/power density as well as long life‐span challenge their further application as grid‐scale energy storage devices. Eutectic electrolytes as a novel class of electrolytes have been extensively reported and explored taking advantage of their feasible preparation and high tunability. Recently, some perspectives have summarized the development and application of eutectic electrolytes in metal‐based batteries, but their infancy requires further attention and discussion. This review systematically presents the fundamentals and definitions of eutectic electrolytes. Besides, a specific classification of eutectic electrolytes and their recent progress and performance on RZB fields are introduced as well. Significantly, the impacts of various composing eutectic systems are disserted for critical RZB chemistries including attractive features at electrolyte/electrode interfaces and ions/charges transport kinetics. The remaining challenges and proposed perspectives are ultimately induced, which deliver opportunities and offer practical guidance for the novel design of advanced eutectic electrolytes for superior RZB scenarios.

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“…Based on the above findings, researchers have continuously lowered the lowest operating temperature of LIBs and EDLCs by optimizing the composition of electrolytes or designing suitable structures of electrode materials. [ 30–32 ] Simultaneously, these findings can provide guidance for building other types of low‐temperature EES devices, such as sodium‐ion batteries, potassium ion batteries, and zinc ion batteries, etc. [ 33,34 ] However, it should be noted that although considerable effort has been devoted on exploring the limiting factors of low‐temperature operation of EES devices and developing low‐temperature‐available EES devices has become a hot spot in the EES field, there is still a big gap between the current achievements and the ideal needs, and the rapid development of low‐temperature EES devices still faces many challenges.…”

Section: Introductionmentioning

confidence: 99%

Ions Transport in Electrochemical Energy Storage Devices at Low Temperatures

Sun

Liu

et al. 2021

Adv Funct Materials

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The operation of electrochemical energy storage (EES) devices at low temperatures as normal as at room temperature is of great significance for their lowtemperature environment application. However, such operation is plagued by the sluggish ions transport kinetics, which leads to the severe capacity decay or even failure of devices at low-temperature conditions. In this review, the difficulties of ions transport in electrolyte, electrolyte/electrode interface, and electrode material at low temperatures are discussed in depth, and the reported strategies to solve the corresponding problems are surveyed subsequently. Finally, the views on how to build high-performance low-temperatureavailable EES devices as well as their development directions are put forward.

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EMIMBF4 in ternary liquid mixtures of water, dimethyl sulfoxide and acetonitrile as “tri-solvent-in-salt” electrolytes for high-performance supercapacitors operating at -70 °C

Cited by 32 publications

References 122 publications

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

Eutectic Electrolytes Chemistry for Rechargeable Zn Batteries

Ions Transport in Electrochemical Energy Storage Devices at Low Temperatures

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