Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Zhou, Teng; Gui, Chengmin; Sun, Longgang; Hu, Yongxin; Lyu, Hao; Wang, Zihao; Song, Zhen; Yu, Gangqiang

doi:10.1021/acs.chemrev.3c00391

Cited by 25 publications

(7 citation statements)

References 777 publications

(1,592 reference statements)

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“…Ionic liquid electrolytes with wider ESPWs, higher ion conductivity, and improved safety can be used to construct high-performance SCs (particularly with high energy density). However, due to large ion sizes, high viscosity, and low ionic conductivity, the actual application of ionic liquid electrolytes is restricted . Similar to aqueous and organic electrolytes, the mass matching of ionic liquid-based SCs still follows the charge balance principle. ,,, But in view of these features of ionic liquid electrolytes, we should fully consider the wettability of ionic liquids to electrode materials as well as their ion transport kinetics in realizing the mass-balancing of ionic liquid-based SCs.…”

Section: Practice Guidelines For the Mass-balancingmentioning

confidence: 99%

The Mass-Balancing between Positive and Negative Electrodes for Optimizing Energy Density of Supercapacitors

Jing,

Zhuo,

Sun

et al. 2024

J. Am. Chem. Soc.

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Supercapacitors (SCs) are some of the most promising energy storage devices, but their low energy density is one main weakness. Over the decades, superior electrode materials and suitable electrolytes have been widely developed to enhance the energy storage ability of SCs. Particularly, constructing asymmetric supercapacitors (ASCs) can extend their electrochemical stable voltage windows (ESVWs) and thus achieve high energy density. However, only full utilization of the electrochemical stable potential windows (ESPWs) of both positive and negative electrodes can endow the ASC devices with a maximum ESVW by using a suitable mass-ratio between two electrodes (the mass-balancing). Nevertheless, insufficient attention is directed to mass-balancing, and even numerous misunderstandings and misuses have appeared. Therefore, in this Perspective, we focus on the mass-balancing: summarize theoretic basis of the mass-balancing, derive relevant relation equations, analyze and discuss the change trends of the specific capacitance and energy density of ASCs with mass-ratios, and finally recommend some guidelines for the normative implementation of the mass-balancing. Especially, the issues related to pseudocapacitive materials, hybrid devices, and different open circuit potentials (OCPs) of the positive and negative electrodes in the mass-balancing are included and emphasized. These analyses and guidelines can be conducive to understanding and performing mass-balancing for developing high-performance SCs.

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Section: Practice Guidelines For the Mass-balancingmentioning

confidence: 99%

The Mass-Balancing between Positive and Negative Electrodes for Optimizing Energy Density of Supercapacitors

Jing,

Zhuo,

Sun

et al. 2024

J. Am. Chem. Soc.

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“…Ions are electron-gained or electron-lost in electrically charged atoms. Soluble salts, acids, and other bases in liquid, gelled, or dry forms make up the electrolyte of a battery [159]. Additionally, the electrolyte is available in solid ceramic, polymer (used in solid-state batteries), and molten salt (used in sodiumsulphur-based batteries) [160].…”

Section: Aqueous Rechargeable Batteries Based On Organic-aluminum Cou...mentioning

confidence: 99%

A Review on the Recent Advances in Battery Development and Energy Storage Technologies

Njema,

Ouma,

Kibet

2024

Journal of Renewable Energy

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Energy storage is a more sustainable choice to meet net-zero carbon foot print and decarbonization of the environment in the pursuit of an energy independent future, green energy transition, and uptake. The journey to reduced greenhouse gas emissions, increased grid stability and reliability, and improved green energy access and security are the result of innovation in energy storage systems. Renewable energy sources are fundamentally intermittent, which means they rely on the availability of natural resources like the sun and wind rather than continuously producing energy. Due to its ability to address the inherent intermittency of renewable energy sources, manage peak demand, enhance grid stability and reliability, and make it possible to integrate small-scale renewable energy systems into the grid, energy storage is essential for the continued development of renewable energy sources and the decentralization of energy generation. Accordingly, the development of an effective energy storage system has been prompted by the demand for unlimited supply of energy, primarily through harnessing of solar, chemical, and mechanical energy. Nonetheless, in order to achieve green energy transition and mitigate climate risks resulting from the use of fossil-based fuels, robust energy storage systems are necessary. Herein, the need for better, more effective energy storage devices such as batteries, supercapacitors, and bio-batteries is critically reviewed. Due to their low maintenance needs, supercapacitors are the devices of choice for energy storage in renewable energy producing facilities, most notably in harnessing wind energy. Moreover, supercapacitors possess robust charging and discharging cycles, high power density, low maintenance requirements, extended lifespan, and are environmentally friendly. On the other hand, combining aluminum with nonaqueous charge storage materials such as conductive polymers to make use of each material’s unique capabilities could be crucial for continued development of robust storage batteries. In general, energy density is a key component in battery development, and scientists are constantly developing new methods and technologies to make existing batteries more energy proficient and safe. This will make it possible to design energy storage devices that are more powerful and lighter for a range of applications. When there is an imbalance between supply and demand, energy storage systems (ESS) offer a way of increasing the effectiveness of electrical systems. They also play a central role in enhancing the reliability and excellence of electrical networks that can also be deployed in off-grid localities.

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“…These green solvents possess several distinguished properties, including low vapor pressure, structure tunability, and high thermal stability. ILs have been utilized in a number of applications, such as catalysis, electrolytes, sensors, energy devices, and gas separation and purification. − …”

Section: Introductionmentioning

confidence: 99%

Efficient Selective Carbon Dioxide Separation via Task-Specific Ionic Liquids Incorporated in ZIF-8

Hussain,

Dong,

Duan

et al. 2024

Langmuir

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Owing to the rapid increase in anthropogenic emission of carbon dioxide (CO 2 ) in the atmosphere, which has resulted in a number of global climate challenges, a decrease in CO 2 emissions is urgently needed in the current scenario. This study focuses on the development and characterization of composites for carbon dioxide (CO 2 ) separation. The composites consist of two task-specific ionic liquids (TSILs), namely, tetramethylgunidinium imidazole [TMGHIM] and tetramethylgunidinium phenol [TMGHPhO], impregnated in ZIF-8. The performance of CO 2 separation, including sorption capacity and selectivity, was evaluated for pristine ZIF-8

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Energy Applications of Ionic Liquids: Recent Developments and Future Prospects

Cited by 25 publications

References 777 publications

The Mass-Balancing between Positive and Negative Electrodes for Optimizing Energy Density of Supercapacitors

The Mass-Balancing between Positive and Negative Electrodes for Optimizing Energy Density of Supercapacitors

A Review on the Recent Advances in Battery Development and Energy Storage Technologies

Efficient Selective Carbon Dioxide Separation via Task-Specific Ionic Liquids Incorporated in ZIF-8

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