Electrolyte design for lithium-sulfur batteries: progress and challenges

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Date

2025

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier Ltd

Abstract

Lithium-sulfur batteries (LiSBs) have gained popularity in recent years because of their high specific capacity (1675 mAh/g), high energy density (2600 Wh/kg) and abundance of sulfur in nature. Yet, unlike Lithium-ionbatteries, their commercialization has been challenging. In spite of significant studies on cathodes made of sulfur, lithium metal anodes, changes in separator topologies, embedded layers in cell topologies, and electrolyte architecture, it is still difficult to explain the polysulfide shuttling effect in electrolytes used in LiSBs. This review provides a comprehensive perspective on electrolyte design and critically examines recent research on electrolytes in LiSBs. It additionally provides distinctive techniques for improving the performance and lifespan of these batteries. In short, this review provides a clear and insightful evaluation of the development, prospects, and challenges related to LiSB electrolytes. The advancement of LiSBs holds immense potential to significantly enhance the sustainability and efficiency of our energy landscape. Hence, this field presents an impactful opportunity for researchers and investors to contribute to a more sustainable future.

Description

Keywords

Lithium sulfur batteries, Ionic liquid based electrolytes, Solid-state polymer electrolyte, Gel polymer-based electrolytes, metal anodes

Citation

Jan, W. et al. (2025) Electrolyte design for lithium-sulfur batteries: Progress and challenges. Renewable & sustainable energy reviews. [Online] 221.