中文版 | English
Title

Li7La3Zr2O12-co-LiNbO3 Surface Modification Improves the Interface Stability between Cathode and Sulfide Solid-State Electrolyte in All-Solid-State Batteries

Author
Corresponding AuthorKang, Shusen; Fan, Yanchen
Publication Years
2023-02-01
DOI
Source Title
EISSN
2077-0375
Volume13Issue:2
Abstract
With the rapid development of energy storage and electric vehicles, thiophosphate-based all-solid-state batteries (ASSBs) are considered the most promising power source. In order to commercialize ASSBs, the interfacial problem between high-voltage cathode active materials and thiophosphate-based solid-state electrolytes needs to be solved in a simple, effective way. Surface coatings are considered the most promising approach to solving the interfacial problem because surface coatings could prevent direct physical contact between cathode active materials and thiophosphate-based solid-state electrolytes. In this work, Li7La3Zr2O12 (LLZO) and LiNbO3 (LNO) coatings for LiCoO2 (LCO) were fabricated by in-situ interfacial growth of two high-Li+ conductive oxide electrolytes on the LCO surface and tested for thiophosphate-based ASSBs. The coatings were obtained from a two-step traditional sol-gel coatings process, the inner coatings were LNO, and the surface coatings were LLZO. Electrochemical evaluations confirmed that the two-layer coatings are beneficial for ASSBs. ASSBs containing LLZO-co-LNO coatings LiCoO2 (LLZO&LNO@LCO) significantly improved long-term cycling performance and discharge capacity compared with those assembled from uncoated LCO. LLZO&LNO@LCO||Li6PS5Cl (LPSC)||Li-In delivered discharge capacities of 138.8 mAh/g, 101.8 mAh/g, 60.2 mAh/g, and 40.2 mAh/g at 0.05 C, 0.1 C, 0.2 C, and 0.5 C under room temperature, respectively, and better capacity retentions of 98% after 300 cycles at 0.05 C. The results highlighted promising low-cost and scalable cathode material coatings for ASSBs.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China["51773042","51973040"] ; China Postdoctoral Science Foundation[2022M722214]
WOS Research Area
Biochemistry & Molecular Biology ; Chemistry ; Engineering ; Materials Science ; Polymer Science
WOS Subject
Biochemistry & Molecular Biology ; Chemistry, Physical ; Engineering, Chemical ; Materials Science, Multidisciplinary ; Polymer Science
WOS Accession No
WOS:000940592500001
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/501479
DepartmentAcademy for Advanced Interdisciplinary Studies
工学院_材料科学与工程系
Affiliation
1.Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymer, Shanghai 200438, Peoples R China
2.Sunwoda Elect Vehicle Battery Co, Shenzhen 518107, Peoples R China
3.Jilin Agr Univ, Coll Resources & Environm, Changchun 130118, Peoples R China
4.Petro China Shenzhen Renewable Energy Res Inst Co, Shenzhen 518000, Peoples R China
5.CNPC Shenzhen New Energy Res Inst Co Ltd, Shenzhen 518000, Peoples R China
6.Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
Corresponding Author AffilicationAcademy for Advanced Interdisciplinary Studies;  Department of Materials Science and Engineering
Recommended Citation
GB/T 7714
Liang, Shishuo,Yang, Dong,Hu, Jianhua,et al. Li7La3Zr2O12-co-LiNbO3 Surface Modification Improves the Interface Stability between Cathode and Sulfide Solid-State Electrolyte in All-Solid-State Batteries[J]. MEMBRANES,2023,13(2).
APA
Liang, Shishuo,Yang, Dong,Hu, Jianhua,Kang, Shusen,Zhang, Xue,&Fan, Yanchen.(2023).Li7La3Zr2O12-co-LiNbO3 Surface Modification Improves the Interface Stability between Cathode and Sulfide Solid-State Electrolyte in All-Solid-State Batteries.MEMBRANES,13(2).
MLA
Liang, Shishuo,et al."Li7La3Zr2O12-co-LiNbO3 Surface Modification Improves the Interface Stability between Cathode and Sulfide Solid-State Electrolyte in All-Solid-State Batteries".MEMBRANES 13.2(2023).
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