Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries

The advancement of lithium–sulfur (Li-S) batteries has been hindered by the shuttle effect of lithium polysulfides (LiPSs) and sluggish redox kinetics. The engineering of functional hybrid separators is a relatively simple and effective coping strategy. Layered transition-metal carbides, nitrides, a...

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Main Authors: Xiao Zhang, Guijie Jin, Min Mao, Zirui Wang, Tianyu Xu, Tongtao Wan, Jinsheng Zhao
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/30/8/1833
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author Xiao Zhang
Guijie Jin
Min Mao
Zirui Wang
Tianyu Xu
Tongtao Wan
Jinsheng Zhao
author_facet Xiao Zhang
Guijie Jin
Min Mao
Zirui Wang
Tianyu Xu
Tongtao Wan
Jinsheng Zhao
author_sort Xiao Zhang
collection DOAJ
description The advancement of lithium–sulfur (Li-S) batteries has been hindered by the shuttle effect of lithium polysulfides (LiPSs) and sluggish redox kinetics. The engineering of functional hybrid separators is a relatively simple and effective coping strategy. Layered transition-metal carbides, nitrides, and carbonitrides, a class of emerging two-dimensional materials termed MXenes, have gained popularity as catalytic materials for Li-S batteries due to their metallic conductivity, tunable surface chemistry, and terminal groups. Nonetheless, the self-stacking flaws and easy oxidation of MXenes pose disadvantages, and developing MXene-based heterostructures is anticipated to circumvent these issues and yield other remarkable physicochemical characteristics. Herein, recent advances in the construction of MXene-based heterostructured hybrid separators for improving the performance of Li-S batteries are reviewed. The diverse conformational forms of heterostructures and their constitutive relationships with LiPS conversion are discussed, and the general principles of MXene surface chemistry alterations and heterostructure designs for enhancing electrochemical performance are summarized. Lastly, tangible challenges are addressed, and advisable insights for future research are shared. This review aims to highlight the immense superiority of MXene-based heterostructures in Li-S battery separator modification and inspire researchers.
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spelling doaj-art-e03d13d625564b7e9721277595d6496b2025-08-20T02:18:15ZengMDPI AGMolecules1420-30492025-04-01308183310.3390/molecules30081833Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur BatteriesXiao Zhang0Guijie Jin1Min Mao2Zirui Wang3Tianyu Xu4Tongtao Wan5Jinsheng Zhao6Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaHubei Key Laboratory of Automotive Power Train and Electronic Control, School of Automotive Engineering, Hubei University of Automotive Technology, Shiyan 442002, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaThe advancement of lithium–sulfur (Li-S) batteries has been hindered by the shuttle effect of lithium polysulfides (LiPSs) and sluggish redox kinetics. The engineering of functional hybrid separators is a relatively simple and effective coping strategy. Layered transition-metal carbides, nitrides, and carbonitrides, a class of emerging two-dimensional materials termed MXenes, have gained popularity as catalytic materials for Li-S batteries due to their metallic conductivity, tunable surface chemistry, and terminal groups. Nonetheless, the self-stacking flaws and easy oxidation of MXenes pose disadvantages, and developing MXene-based heterostructures is anticipated to circumvent these issues and yield other remarkable physicochemical characteristics. Herein, recent advances in the construction of MXene-based heterostructured hybrid separators for improving the performance of Li-S batteries are reviewed. The diverse conformational forms of heterostructures and their constitutive relationships with LiPS conversion are discussed, and the general principles of MXene surface chemistry alterations and heterostructure designs for enhancing electrochemical performance are summarized. Lastly, tangible challenges are addressed, and advisable insights for future research are shared. This review aims to highlight the immense superiority of MXene-based heterostructures in Li-S battery separator modification and inspire researchers.https://www.mdpi.com/1420-3049/30/8/1833MXenesheterostructuresseparatorsshuttle effectredox kineticslithium–sulfur batteries
spellingShingle Xiao Zhang
Guijie Jin
Min Mao
Zirui Wang
Tianyu Xu
Tongtao Wan
Jinsheng Zhao
Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries
Molecules
MXenes
heterostructures
separators
shuttle effect
redox kinetics
lithium–sulfur batteries
title Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries
title_full Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries
title_fullStr Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries
title_full_unstemmed Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries
title_short Construction of MXene-Based Heterostructured Hybrid Separators for Lithium–Sulfur Batteries
title_sort construction of mxene based heterostructured hybrid separators for lithium sulfur batteries
topic MXenes
heterostructures
separators
shuttle effect
redox kinetics
lithium–sulfur batteries
url https://www.mdpi.com/1420-3049/30/8/1833
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AT minmao constructionofmxenebasedheterostructuredhybridseparatorsforlithiumsulfurbatteries
AT ziruiwang constructionofmxenebasedheterostructuredhybridseparatorsforlithiumsulfurbatteries
AT tianyuxu constructionofmxenebasedheterostructuredhybridseparatorsforlithiumsulfurbatteries
AT tongtaowan constructionofmxenebasedheterostructuredhybridseparatorsforlithiumsulfurbatteries
AT jinshengzhao constructionofmxenebasedheterostructuredhybridseparatorsforlithiumsulfurbatteries