Catalytic engineering for polysulfide conversion in high-performance lithium-sulfur batteries  

作　　者：Shibo Du Yiyao Yu Xianbin Liu Dunqi Lu Xiaohan Yue Ting Liu Yanhong Yin Ziping Wu 

机构地区：[1]School of Materials Science and Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China

出　　处：《Journal of Materials Science & Technology》2024年第19期110-131,共22页材料科学技术（英文版）

基　　金：financially supported by National Natural Science Foundation of China(Nos.52164030 and 22179055);Natural Science Foundation of Jiangxi Province(Nos.20202ACBL204007 and 20224BAB204004);Program of Qingjiang Excellent Young Talents of Jiangxi University of Science and Technology(No.JXUSTQJYX2019010).

摘　　要：Lithium-sulfur (Li-S) batteries are considered appealing power sources due to their high theoretical energy density (2600 Wh kg-1), low cost, and environmental friendliness. However, their widespread applicability is restricted by two scientific problems: sluggish sulfur reaction kinetics and severe polysulfide shuttle effects. Multifarious strategies have been developed to overcome these two obstacles and achieve high sulfur utilization and capacity retention. Among these strategies, the introduction of catalytic materials into the Li-S battery system can greatly accelerate sulfur conversion and effectively inhibit the polysulfide shuttle effects. Herein, we have comprehensively reviewed the recent progress of catalytic engineering for polysulfide conversion in high-performance lithium-sulfur batteries. First, various catalytic materials serve as sulfur hosts, functionalized separators, and electrolyte additives;the mechanisms by which these materials promote the conversion of polysulfides in Li-S batteries have been systematically summarized. The relationship of structure, preparation, property, advantages, and limitations of these catalytic materials are comprehensively presented. Subsequently, the advanced characterization techniques of these catalytic processes are discussed, shedding light on the fundamental understanding of catalytic effects for improved electrochemical performance. Furthermore, future design tactics for high-performance Li-S batteries are discussed.

关 键 词：Lithium-sulfur battery Catalytic effect Polysulfides conversion In-suit characterization 

分 类 号：TM912[电气工程—电力电子与电力传动]