Breaking the Barrier: Strategies for Mitigating Shuttle Effect in Lithium–Sulfur Batteries Using Advanced Separators

Author:

Zhu Yingbao1,Chen Zhou1ORCID,Chen Hui2,Fu Xuguang2,Awuye Desire Emefa3,Yin Xichen1,Zhao Yixuan1

Affiliation:

1. School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211800, China

2. Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd., Xuzhou 221000, China

3. Department of Minerals and Materials Engineering, University of Mines and Technology, Tarkwa 03123, Ghana

Abstract

Lithium–sulfur (Li-S) batteries are considered one of the most promising energy storage systems due to their high theoretical capacity, high theoretical capacity density, and low cost. However, challenges such as poor conductivity of sulfur (S) elements in active materials, the “shuttle effect” caused by lithium polysulfide, and the growth of lithium dendrites impede the commercial development of Li-S batteries. As a crucial component of the battery, the separator plays a vital role in mitigating the shuttle effect caused by polysulfide. Traditional polypropylene, polyethylene, and polyimide separators are constrained by their inherent limitations, rendering them unsuitable for direct application in lithium–sulfur batteries. Therefore, there is an urgent need for the development of novel separators. This review summarizes the applications of different separator preparation methods and separator modification methods in lithium–sulfur batteries and analyzes their electrochemical performance.

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

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