Zhu Yingbao, Chen Zhou, Chen Hui, Fu Xuguang, Awuye Desire Emefa, Yin Xichen, Zhao Yixuan
School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211800, China.
Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd., Xuzhou 221000, China.
Polymers (Basel). 2023 Sep 30;15(19):3955. doi: 10.3390/polym15193955.
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.
锂硫（Li-S）电池因其高理论容量、高理论容量密度和低成本，被认为是最具前景的储能系统之一。然而，诸如活性材料中硫（S）元素导电性差、多硫化锂引起的“穿梭效应”以及锂枝晶的生长等挑战，阻碍了锂硫电池的商业发展。作为电池的关键组件，隔膜在减轻多硫化物引起的穿梭效应方面起着至关重要的作用。传统的聚丙烯、聚乙烯和聚酰亚胺隔膜受到其固有局限性的制约，使其不适用于直接应用于锂硫电池。因此，迫切需要开发新型隔膜。本文综述了不同隔膜制备方法和隔膜改性方法在锂硫电池中的应用，并分析了它们的电化学性能。
