A Semisolvated Sole-Solvent Electrolyte for High-Voltage Lithium Metal Batteries

doi:10.1021/jacs.3c08733

IMR OpenIR

	A Semisolvated Sole-Solvent Electrolyte for High-Voltage Lithium Metal Batteries
	Piao, Zhihong 1,2; Wu, Xinru 1,2; Ren, Hong-Rui 1,2; Lu, Gongxun 1,2; Gao, Runhua 1,2; Zhou, Guangmin 1,2; Cheng, Hui-Ming 3,4
通讯作者	Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn) ; Cheng, Hui-Ming(hmcheng@sz.tsinghua.edu.cn)
	2023-10-27
发表期刊	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN	0002-7863
卷号	145 期号:44 页码:24260-24271
摘要	Lithium metal batteries (LMBs) coupled with a high-voltage Ni-rich cathode are promising for meeting the increasing demand for high energy density. However, aggressive electrode chemistry imposes ultimate requirements on the electrolytes used. Among the various optimized electrolytes investigated, localized high-concentration electrolytes (LHCEs) have excellent reversibility against a lithium metal anode. However, because they consist of thermally and electrochemically unstable solvents, they have inferior stability at elevated temperatures and high cutoff voltages. Here we report a semisolvated sole-solvent electrolyte to construct a typical LHCE solvation structure but with significantly improved stability using one bifunctional solvent. The designed electrolyte exhibits exceptional stability against both electrodes with suppressed lithium dendrite growth, phase transition, microcracking, and transition metal dissolution. A Li\|\|Ni0.8Co0.1Mn0.1O2 cell with this electrolyte operates stably over a wide temperature range from -20 to 60 degrees C and has a high capacity retention of 95.6% after the 100th cycle at 4.7 V, and similar to 80% of the initial capacity is retained even after 180 cycles. This new electrolyte indicates a new path toward future electrolyte engineering and safe high-voltage LMBs.
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Shenzhen Science and Technology Program ; Guangdong Innovative and Entrepreneurial Research Team Program ; Tsinghua Shenzhen International Graduate School
DOI	10.1021/jacs.3c08733
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2021YFB2500200] ; National Natural Science Foundation of China[U21A20174] ; National Natural Science Foundation of China[52072205] ; Shenzhen Science and Technology Program[KQTD20210811090112002] ; Guangdong Innovative and Entrepreneurial Research Team Program[2021ZT09L197] ; Tsinghua Shenzhen International Graduate School
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:001096721200001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：24[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/321006/177512
专题	中国科学院金属研究所
通讯作者	Zhou, Guangmin; Cheng, Hui-Ming
作者单位	1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 2.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518055, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Piao, Zhihong,Wu, Xinru,Ren, Hong-Rui,et al. A Semisolvated Sole-Solvent Electrolyte for High-Voltage Lithium Metal Batteries[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2023,145(44):24260-24271.
APA	Piao, Zhihong.,Wu, Xinru.,Ren, Hong-Rui.,Lu, Gongxun.,Gao, Runhua.,...&Cheng, Hui-Ming.(2023).A Semisolvated Sole-Solvent Electrolyte for High-Voltage Lithium Metal Batteries.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,145(44),24260-24271.
MLA	Piao, Zhihong,et al."A Semisolvated Sole-Solvent Electrolyte for High-Voltage Lithium Metal Batteries".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 145.44(2023):24260-24271.