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Review | Open Access

Weakly solvating electrolytes for next-generation lithium batteries: design principles and recent advances

Zhijie Wang, Biao Zhang( )
Department of Applied Physics & Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
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Abstract

Lithium (Li) batteries are major players in the power source market of electric vehicles and portable electronic devices. Electrolytes are critical to determining the performance of Li batteries. Conventional electrolytes fall behind the ever-growing demands for fast-charging, wide-temperature operation, and safety properties of Li batteries. Despite the great success of (localized) high-concentration electrolytes, they still suffer from disadvantages, such as low ionic conductivity and high cost. Weakly solvating electrolytes (WSEs), also known as low-solvating electrolytes, offer another solution to these challenges, and they have attracted intensive research interests in recent years. This contribution reviews the working mechanisms, design principles, and recent advances in the development of WSEs. A summary and perspective regarding future research directions in this field is also provided. The insights will benefit academic and industrial communities in the design of safe and high-performance next-generation Li batteries.

Keywords

weakly solvating electrolytessolvation structuresalt designsolvent engineeringlithium batteries

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Energy Materials and Devices
Volume 1 Issue 1,
September 2023
Article number: 9370003
DOI: 10.26599/EMD.2023.9370003
Cite this article:
Wang Z, Zhang B. Weakly solvating electrolytes for next-generation lithium batteries: design principles and recent advances. Energy Materials and Devices, 2023, 1(1): 9370003. https://doi.org/10.26599/EMD.2023.9370003

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Received: 03 August 2023
Revised: 21 August 2023
Accepted: 23 August 2023
Published: 18 September 2023
© The Author(s) 2023. Published by Tsinghua University Press.

The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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