Jing Zhang, Jin Chen, Yanyi Liu, Jian Wei, Yuzhao Ma, Xiaofeng Yang, Yanjun Li
{"title":"Harnessing Medium Entropy Features and Oxygen Defects in Spinel Ferrite Cathodes for Enhanced Cycling Performance in Lithium-Sulfur Batteries","authors":"Jing Zhang, Jin Chen, Yanyi Liu, Jian Wei, Yuzhao Ma, Xiaofeng Yang, Yanjun Li","doi":"10.1039/d4ta04811c","DOIUrl":null,"url":null,"abstract":"The unique structure of medium entropy materials has garnered significant attention in the field of batteries. Medium-entropy spinel ferrite, as a new cathode material for lithium-sulfur batteries, presents boundless possibilities to tailor charge-discharge performance. Herein, abundant oxygen vacancies were implanted into medium-entropy spinel ferrites and utilized as cathode materials for lithium-sulfur batteries to address the challenges associated with the sluggish shuttle and conversion kinetics of lithium polysulfides (LiPSs) during charge-discharge processes in Li-S batteries. The synergistic effects among multiple species highlight the advantages of medium entropy features. The presence of oxygen vacancies mitigates the energy barrier associated with the decomposition reaction, thereby facilitating charge transfer kinetics and promoting LiPSs conversion. Oxygen vacancies can be readily implanted into the medium-entropy spinel ferrite, thereby enabling the distinctive medium-entropy-driven influence of oxygen vacancies on the favorable rate capability and prolonged cycling performance of lithium-sulfur batteries. This study presents a promising approach for utilizing design defects in medium-entropy ferrites within the realm of battery applications.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta04811c","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The unique structure of medium entropy materials has garnered significant attention in the field of batteries. Medium-entropy spinel ferrite, as a new cathode material for lithium-sulfur batteries, presents boundless possibilities to tailor charge-discharge performance. Herein, abundant oxygen vacancies were implanted into medium-entropy spinel ferrites and utilized as cathode materials for lithium-sulfur batteries to address the challenges associated with the sluggish shuttle and conversion kinetics of lithium polysulfides (LiPSs) during charge-discharge processes in Li-S batteries. The synergistic effects among multiple species highlight the advantages of medium entropy features. The presence of oxygen vacancies mitigates the energy barrier associated with the decomposition reaction, thereby facilitating charge transfer kinetics and promoting LiPSs conversion. Oxygen vacancies can be readily implanted into the medium-entropy spinel ferrite, thereby enabling the distinctive medium-entropy-driven influence of oxygen vacancies on the favorable rate capability and prolonged cycling performance of lithium-sulfur batteries. This study presents a promising approach for utilizing design defects in medium-entropy ferrites within the realm of battery applications.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.