Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries

An artificial solid electrolyte interphase (SEI) with lithiophilic sites and chemical bonds anchoring lithium polysulfides (LiPSs) has been developed as a potential solution to protect the lithium (Li) metal anode of Lithium−sulfur (Li–S) batteries. This strategy aims to guide consistent Li depositi...

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Main Authors: Wei Lu, Anshun Zhao, Qiuxu Chen, Sihan Liu, Mingxi Yu, Zihao Wang, Ze Gao, Xue Zhao, Guiru Sun, Ming Feng
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2024-12-01
Series:Green Energy & Environment
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Online Access:http://www.sciencedirect.com/science/article/pii/S2468025724001389
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author Wei Lu
Anshun Zhao
Qiuxu Chen
Sihan Liu
Mingxi Yu
Zihao Wang
Ze Gao
Xue Zhao
Guiru Sun
Ming Feng
author_facet Wei Lu
Anshun Zhao
Qiuxu Chen
Sihan Liu
Mingxi Yu
Zihao Wang
Ze Gao
Xue Zhao
Guiru Sun
Ming Feng
author_sort Wei Lu
collection DOAJ
description An artificial solid electrolyte interphase (SEI) with lithiophilic sites and chemical bonds anchoring lithium polysulfides (LiPSs) has been developed as a potential solution to protect the lithium (Li) metal anode of Lithium−sulfur (Li–S) batteries. This strategy aims to guide consistent Li deposition and relieve lithium corrosion. Herein, the evolution process of lithiophilic sites based on aluminum fluoride (AlF3) in an artificial SEI is disclosed in Li–S batteries with metal−based lithiophilic sites. The polyester polymer (PMMA and PPC)/AlF3 artificial SEI (MPAF−SEI) was homogeneously anchored on Li anode by in−situ polymerization. The conversion of AlF3 into Li–Al and LiF lithiophilic sites effectively reduce the Li nucleation overpotential and prevents the formation of Li dendrites. At the same time, the polymer can anchor LiPSs by chemical bonds and prevents Li corrosion. The optimized MPAF−SEI protected Li demonstrates excellent stability for over 3000 h at a capacity of 1 mAh cm−2 in Li || Li symmetric cells. The Li–S battery with low N/P (4) exhibits a capacity of 532.6 mAh g −1 over 300 cycles lifespan at 0.5 C.
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institution Kabale University
issn 2468-0257
language English
publishDate 2024-12-01
publisher KeAi Communications Co., Ltd.
record_format Article
series Green Energy & Environment
spelling doaj-art-6b79664865b34bd6899dd87286a9cb982024-11-20T05:07:30ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572024-12-0191218911900Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteriesWei Lu0Anshun Zhao1Qiuxu Chen2Sihan Liu3Mingxi Yu4Zihao Wang5Ze Gao6Xue Zhao7Guiru Sun8Ming Feng9Key Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, China; College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin, 136000, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaSchool of Science, Changchun University of Science and Technology, Changchun, Jilin, 130022, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, ChinaKey Laboratory of Functional Materials Physics and Chemistry Ministry of Education, Jilin Normal University, Changchun, Jilin, 130103, China; Corresponding author.An artificial solid electrolyte interphase (SEI) with lithiophilic sites and chemical bonds anchoring lithium polysulfides (LiPSs) has been developed as a potential solution to protect the lithium (Li) metal anode of Lithium−sulfur (Li–S) batteries. This strategy aims to guide consistent Li deposition and relieve lithium corrosion. Herein, the evolution process of lithiophilic sites based on aluminum fluoride (AlF3) in an artificial SEI is disclosed in Li–S batteries with metal−based lithiophilic sites. The polyester polymer (PMMA and PPC)/AlF3 artificial SEI (MPAF−SEI) was homogeneously anchored on Li anode by in−situ polymerization. The conversion of AlF3 into Li–Al and LiF lithiophilic sites effectively reduce the Li nucleation overpotential and prevents the formation of Li dendrites. At the same time, the polymer can anchor LiPSs by chemical bonds and prevents Li corrosion. The optimized MPAF−SEI protected Li demonstrates excellent stability for over 3000 h at a capacity of 1 mAh cm−2 in Li || Li symmetric cells. The Li–S battery with low N/P (4) exhibits a capacity of 532.6 mAh g −1 over 300 cycles lifespan at 0.5 C.http://www.sciencedirect.com/science/article/pii/S2468025724001389Li anodeSEILithiophilic sitesLi–S batteryAlF3
spellingShingle Wei Lu
Anshun Zhao
Qiuxu Chen
Sihan Liu
Mingxi Yu
Zihao Wang
Ze Gao
Xue Zhao
Guiru Sun
Ming Feng
Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries
Green Energy & Environment
Li anode
SEI
Lithiophilic sites
Li–S battery
AlF3
title Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries
title_full Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries
title_fullStr Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries
title_full_unstemmed Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries
title_short Constructing lithiophilic sites–rich artificial solid electrolyte interphase to enable dendrite−free and corrosion−free lithium–sulfur batteries
title_sort constructing lithiophilic sites rich artificial solid electrolyte interphase to enable dendrite free and corrosion free lithium sulfur batteries
topic Li anode
SEI
Lithiophilic sites
Li–S battery
AlF3
url http://www.sciencedirect.com/science/article/pii/S2468025724001389
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