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Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network
Yao, Meng1,2; Zhang, Haitao1,2; Dong, Kun1; Li, Bosen1; Xing, Chunxian1; Dang, Manyu3; Zhang, Suojiang1,2
2021-03-14
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume9Issue:10Pages:6232-6241
AbstractSolid polymer electrolytes (SPEs) that can work over a wide temperature range are highly desired to accelerate the commercial applications of solid lithium metal batteries (SLMBs). Herein, novel SPEs were fabricated via the in situ polymerization and immobilization of a nematic liquid crystal (LC) into a poly(vinylidene fluoride-co-hexafluoropropene)-hexafluoropropylene (P(VDF-HFP)) network under in situ UV irradiation in the presence of an ionic liquid (IL). The migration of Li+ ions in as-formed SPEs was enhanced intensively on account of the interpretation of the poly(liquid crystal) (PLC) network, which was confirmed by FTIR and DFT calculations. As-developed SPEs exhibit an ultra-high ionic conductivity of 1.79 mS cm(-1) at 20 degrees C, a high lithium-ion transference number of 0.64, and an electrochemical window up to 5.0 V. Due to these outstanding performances, Li/Li symmetrical cells containing as-obtained SPEs delivered an outstanding cycling stability of over 3500 h under a current density of 0.2 mA cm(-2). Moreover, a Li/LiFePO4 battery showed desirable cycling stability from 0 degrees C to 100 degrees C. It exhibited a high discharge capacity of 165.1 mA h g(-1), a high capacity retention of 95.1% after 500 cycles, and a high coulombic efficiency above 99.5% even under a 3C rate at 100 degrees C. Undoubtedly, these novel SPEs have great potential to be used in next-generation SLMBs.
DOI10.1039/d0ta10932k
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFB0100303] ; National Natural Science Foundation of China[21878308] ; Major Program of National Natural Science Foundation of China[21890762]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Program of National Natural Science Foundation of China
WOS IDWOS:000631985900024
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48002
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Haitao; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.UCL, Dept Elect & Elect, London, England
Recommended Citation
GB/T 7714
Yao, Meng,Zhang, Haitao,Dong, Kun,et al. Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(10):6232-6241.
APA Yao, Meng.,Zhang, Haitao.,Dong, Kun.,Li, Bosen.,Xing, Chunxian.,...&Zhang, Suojiang.(2021).Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network.JOURNAL OF MATERIALS CHEMISTRY A,9(10),6232-6241.
MLA Yao, Meng,et al."Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network".JOURNAL OF MATERIALS CHEMISTRY A 9.10(2021):6232-6241.
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