Recent advances in copper-based materials for robust lithium polysulfides adsorption and catalytic conversion  

作　　者：Fengxing Liang Yongzheng Zhu Nannan Wang Meiping Zhu Huibing He Yanqiu Zhu Peikang Shen Jinliang Zhu 

机构地区：[1]School of Resources,Environment and Materials,State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures,Guangxi University,Nanning 530004,China [2]College of Engineering,Mathematics and Physical Sciences,University of Exeter,Exeter EX44QF,United Kingdom

出　　处：《Chinese Chemical Letters》2024年第11期172-181,共10页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.51962002);Natural Science Foundation of Guangxi (No.2022GXNSFAA035463)。

摘　　要：Lithium-sulfur(Li-S) batteries are considered one of the most promising next-generation secondary batteries owing to their ultrahigh theoretical energy density.However,practical applications are hindered by the shuttle effect of soluble lithium polysulfides(Li PSs) and sluggish redox kinetics,which result in low active material utilization and poor cycling stability.Various copper-based materials have been used to inhibit the shuttle effect of Li PSs,owing to the strong anchoring effect caused by the lithiophilic/sulphilic sites and the accelerated conversion kinetics caused by excellent catalytic activity.This study briefly introduces the working principles of Li-S batteries,followed by a summary of the synthetic methods for copper-based materials.Moreover,the recent research progress in the utilization of various copper-based materials in cathodes and separators of Li-S batteries,including copper oxides,copper sulfides,copper phosphides,copper selenides,copper-based metal-organic frameworks(MOFs),and copper single-atom,are systematically summarized.Subsequently,three strategies to improve the electrochemical performance of copper-based materials through defect engineering,morphology regulation,and synergistic effect of different components are presented.Finally,our perspectives on the future development of copper-based materials are presented,highlighting the major challenges in the rational design and synthesis of high-performance Li-S batteries.

关 键 词：Li-S batteries Copper-based material Lithium polysulfides ADSORPTION CATALYSIS 

分 类 号：TQ424[化学工程] TQ426[电气工程—电力电子与电力传动] TM912