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Decoupling of ion pairing and ion conduction in ultrahigh-concentration electrolytes enables wide-temperature solid-state batteries
Xu, Shengjun1,2; Xu, Ruogu1,2; Yu, Tong1; Chen, Ke1,3; Sun, Chengguo1,4; Hu, Guangjian1; Bai, Shuo1,2; Cheng, Hui-Ming1,5; Sun, Zhenhua1,2; Li, Feng1,2
Corresponding AuthorSun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
2022-06-23
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
ISSN1754-5692
Pages9
AbstractFast ion conduction and stable interfaces are predicted to be important in the development of new electrolytes. However, many unconventional solvents for electrolytes remain challenging, although they are fast ion carriers, because of the narrow voltage window of solvent oxidation and reduction. Here, we report a general solidified localized high-concentration electrolyte (S-LHCE) strategy with the decoupling of ion pairing and ion conduction to achieve the application of unstable solvents (dimethyl sulfoxide, DMSO) in high-voltage lithium-metal batteries. By decoupling electrolytes with a non-solvating solid framework, the interfacial compatibility was further improved with lithium anodes and high-voltage cathodes. The anion migration was limited with a high Li+ transference number of 0.72, and the lithium-ion conduction was enhanced (0.27 mS cm(-1) at 20 degrees C) by the regulated solvation structure in an ultrahigh salt concentration regime. The S-LHCE strategy enabled solid-state lithium-metal batteries with excellent electrochemical performance over a wide temperature range from -10 to 100 degrees C and with 83.3% and 60.1% capacity retention of the theoretical capacity when cycled at a 30C rate and a 50C rate at an evaluated temperature. The results in this work provide new insight for the application of potential but unconventional active components to high-performance electrolytes.
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Science ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program ; DNL Cooperation Fund, CAS
DOI10.1039/d2ee01053d
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51972313] ; National Natural Science Foundation of China[52020105010] ; National Natural Science Foundation of China[52188101] ; National Natural Science Foundation of China[52072378] ; National Key R&D Program of China[2021YFB2800200] ; National Key R&D Program of China[2021YFB3800301] ; Strategic Priority Research Program of the Chinese Academy of Science[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y201942] ; Liaoning Revitalization Talents Program[XLYC1908015] ; Liaoning Revitalization Talents Program[XLYC2007080] ; DNL Cooperation Fund, CAS[DNL202019]
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS SubjectChemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS IDWOS:000820817800001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174919
Collection中国科学院金属研究所
Corresponding AuthorSun, Zhenhua; Li, Feng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
4.Univ Sci & Technol Liaoning, Sch Chem Engn, Anshan 114051, Peoples R China
5.Chinese Acad Sci, Shenzhen Inst Adv Technol, Inst Technol Carbon Neutral, Fac Mat Sci & Engn, Shenzhen 518055, Peoples R China
Recommended Citation
GB/T 7714
Xu, Shengjun,Xu, Ruogu,Yu, Tong,et al. Decoupling of ion pairing and ion conduction in ultrahigh-concentration electrolytes enables wide-temperature solid-state batteries[J]. ENERGY & ENVIRONMENTAL SCIENCE,2022:9.
APA Xu, Shengjun.,Xu, Ruogu.,Yu, Tong.,Chen, Ke.,Sun, Chengguo.,...&Li, Feng.(2022).Decoupling of ion pairing and ion conduction in ultrahigh-concentration electrolytes enables wide-temperature solid-state batteries.ENERGY & ENVIRONMENTAL SCIENCE,9.
MLA Xu, Shengjun,et al."Decoupling of ion pairing and ion conduction in ultrahigh-concentration electrolytes enables wide-temperature solid-state batteries".ENERGY & ENVIRONMENTAL SCIENCE (2022):9.
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