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New small molecule gel electrolyte with high ionic conductivity for Li-S batteries
Zhu, Shaoyin1; Ma, Furui1,2; Wang, Yanqing1; Yan, Wenchao1; Sun, Deye1; Jin, Yongcheng1
2017-04-01
Source PublicationJOURNAL OF MATERIALS SCIENCE
Volume52Issue:7Pages:4086-4095
AbstractA new small molecule gel electrolyte is developed by trapping an organic mixture of 1,3-dioxolane and dimethyl ether with lithium bistrifluoromethanesulfonimide (LiTFSI). The electrochemical properties of the resulting gel electrolyte are investigated. AC impedance spectroscopy reveals that the ionic conductivity of the as-prepared gel electrolyte containing 8.3 wt% small molecules displays a maximum value of 6.43 x 10(-3) S cm(-1) at room temperature. The possible interaction between molecule and LiTFSI was investigated by the NMR spectra and a speculated transmission mechanism was also discussed. The sulfur cathode with the as-prepared small molecule gel electrolyte displays the initial discharge specific capacity of 1008 mAh g(-1) (0.1 C). The Li-S cells assembled with the as-prepared electrolyte membrane display an excellent cycle performance and coulombic efficiency. The electrolyte membrane played an important role in restraining the shuttle effect of polysulfides. These experimental results demonstrate the possibility and potential as new solid electrolyte for Li-S batteries to replace the traditional polymer gel electrolyte.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1007/s10853-016-0671-4
WOS KeywordLITHIUM-SULFUR BATTERIES ; POLYMER ELECTROLYTES ; PERSPECTIVE ; MEMBRANES ; SYSTEMS
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
Funding OrganizationShandong Province Natural Science Foundation of China(ZR2015PE009) ; Chinese Academy of Sciences ; Qingdao Key Laboratory of Solar Energy Utilization and Energy Storage Technology
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000392500200045
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/9169
Collection先进界面技术研究组
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Shaoyin,Ma, Furui,Wang, Yanqing,et al. New small molecule gel electrolyte with high ionic conductivity for Li-S batteries[J]. JOURNAL OF MATERIALS SCIENCE,2017,52(7):4086-4095.
APA Zhu, Shaoyin,Ma, Furui,Wang, Yanqing,Yan, Wenchao,Sun, Deye,&Jin, Yongcheng.(2017).New small molecule gel electrolyte with high ionic conductivity for Li-S batteries.JOURNAL OF MATERIALS SCIENCE,52(7),4086-4095.
MLA Zhu, Shaoyin,et al."New small molecule gel electrolyte with high ionic conductivity for Li-S batteries".JOURNAL OF MATERIALS SCIENCE 52.7(2017):4086-4095.
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