CAS OpenIR
Functional polyethylene glycol-based solid electrolytes with enhanced interfacial compatibility for room-temperature lithium metal batteries dagger
Zhang, Yuhang1; Chen, Shimou2,3; Chen, Yong4; Li, Lingdong1
2021-03-15
Source PublicationMATERIALS CHEMISTRY FRONTIERS
Pages11
AbstractThe interface issues of electrodes/solid-state electrolytes have been limiting the application of room-temperature lithium metal batteries. In situ polymerization technology achieved the realization of solid-solid ultra-conformal interface contacts. However, few efforts have been directed toward the precursor compatibility of electrodes and simultaneous chemical/electrochemical performances, which may directly cause high interface impedance, severe lithium dendrites and unsatisfactory stability of assembled cells. In this work, high-performance polyethylene glycol-based solid electrolytes with enhanced interfacial compatibility was prepared by an in situ copolymerization of functional polyethylene glycol and vinylene carbonate, in which vinylene carbonate tends to preferentially produce poly(vinylene carbonate) via anionic polymerization within solid electrolyte interface layers on the lithium metal surface to stabilize Li metal, and copolymerization with polyethylene glycol improves overall electrochemical performances. The SPE-assembled Li-Li symmetrical batteries stably run for over 2000 h; meanwhile, SPEs exhibit a high room-temperature ionic conductivity (0.4 mS cm(-1)), high lithium ion transference number (0.46) and wide electrochemical stability window (5.1 V). Resultant LiFePO4/Li metal batteries show a considerable rate capability (up to 5C) and a super-long cycling performance (>300 cycles) at 1C at room temperature. In addition, assembled cells with high-loading cathodes (5.5-10.5 mg cm(-2)) deliver high initial capacities and good capacity retentions. The simple and scalable approach may enable the industrialization and application of room-temperature lithium metal batteries.
DOI10.1039/d1qm00004g
Language英语
Funding ProjectNational Natural Science Foundation of China[51922099] ; National Natural Science Foundation of China[21890760] ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences[CXYJJ20-MS-05] ; Natural Science Foundation of Hebei Province for Distinguished Young Scholars[E2020103052]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences ; Natural Science Foundation of Hebei Province for Distinguished Young Scholars
WOS IDWOS:000634852800001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/47980
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Shimou; Li, Lingdong
Affiliation1.Dalian Univ Technol, Sch Chem Engn, Panjin 124221, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
3.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
4.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yuhang,Chen, Shimou,Chen, Yong,et al. Functional polyethylene glycol-based solid electrolytes with enhanced interfacial compatibility for room-temperature lithium metal batteries dagger[J]. MATERIALS CHEMISTRY FRONTIERS,2021:11.
APA Zhang, Yuhang,Chen, Shimou,Chen, Yong,&Li, Lingdong.(2021).Functional polyethylene glycol-based solid electrolytes with enhanced interfacial compatibility for room-temperature lithium metal batteries dagger.MATERIALS CHEMISTRY FRONTIERS,11.
MLA Zhang, Yuhang,et al."Functional polyethylene glycol-based solid electrolytes with enhanced interfacial compatibility for room-temperature lithium metal batteries dagger".MATERIALS CHEMISTRY FRONTIERS (2021):11.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Yuhang]'s Articles
[Chen, Shimou]'s Articles
[Chen, Yong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Yuhang]'s Articles
[Chen, Shimou]'s Articles
[Chen, Yong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Yuhang]'s Articles
[Chen, Shimou]'s Articles
[Chen, Yong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.