Research progress in performance improvement strategies and sulfur conversion mechanisms of Li-S batteries based on Fe series nanomaterials  

作　　者：Ziyang Huang Zhenghua Wang Lei Zhou Jun Pu 

机构地区：[1]Key Laboratory of Functional Molecular Solids(Ministry of Education),College of Chemistry and Materials Science,Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials,Anhui Normal University,Wuhu 241000,China [2]School of Energy and Power Engineering,Jiangsu University,Zhenjiang 212013,China [3]Department of Electrical Engineering,Eindhoven University of Technology,Eindhoven MB 5600,The Netherlands

出　　处：《Nano Research》2024年第9期8045-8067,共23页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.52207227 and 52202244);Doctoral Research Initiation Foundation of Anhui Normal University(No.751973);the Natural Science Foundation of Jiangsu Province,China(No.BK20220540);the Research Foundation for Advanced Talents of Jiangsu University,China(No.22JDG010).

摘　　要：Lithium-sulfur(Li-S)batteries hold the potential to revolutionize energy storage due to the high theoretical capacity and energy density.However,the commercialization process is seriously hindered by the rapid capacity decay and low utilization of sulfur,caused by the inevitable slow dynamics and the“shuttle effect”.The incorporation of metal-based electrocatalysts into sulfur cathodes shows promise in promoting the conversion of lithium polysulfides(LiPSs),reducing the“shuttle effect”,and enhancing cell kinetics and cycle life.Among these,Fe-based materials,characterized by environmental friendliness,low cost,abundant reserves,and high activity,are extensively used in sulfur cathode modification.This article reviews the advancements of Fe-based materials in enhancing Li-S batteries in recent years.Starting from single/multi-component Fe-based metal compounds and single/bimetallic atoms,the influence of different Fe coordination environments on the conversion mechanism of LiPSs is analyzed.It is hoped that this review and the proposed prospects can further stimulate the development and application of the Fe element in Li-S batteries in the future.

关 键 词：Li-S batteries Fe-based nanomaterials shuttle effect reaction kinetics 

分 类 号：TM912[电气工程—电力电子与电力传动]