Decoupling of ion pairing and ion conduction in ultrahigh-concentration electrolytes enables wide-temperature solid-state batteries

doi:10.1039/d2ee01053d

IMR OpenIR

	Decoupling of ion pairing and ion conduction in ultrahigh-concentration electrolytes enables wide-temperature solid-state batteries
	Xu, Shengjun 1,2; Xu, Ruogu 1,2; Yu, Tong 1; Chen, Ke 1,3; Sun, Chengguo 1,4; Hu, Guangjian 1; Bai, Shuo 1,2; Cheng, Hui-Ming 1,5; Sun, Zhenhua 1,2; Li, Feng 1,2
通讯作者	Sun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
	2022-06-23
发表期刊	ENERGY & ENVIRONMENTAL SCIENCE
ISSN	1754-5692
页码	9
摘要	Fast 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.
资助者	National 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
DOI	10.1039/d2ee01053d
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS类目	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号	WOS:000820817800001
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：54[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174919
专题	中国科学院金属研究所
通讯作者	Sun, Zhenhua; Li, Feng
作者单位	1.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
推荐引用方式 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.