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

文献类型：期刊论文

作者Piao, Zhihong2,3; Wu, Xinru2,3; Ren, Hong-Rui2,3; Lu, Gongxun2,3; Gao, Runhua2,3; Zhou, Guangmin2,3; Cheng, Hui-Ming1,4
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
出版日期2023-10-27
卷号145期号:44页码:24260-24271
ISSN号0002-7863
DOI10.1021/jacs.3c08733
通讯作者Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn) ; Cheng, Hui-Ming(hmcheng@sz.tsinghua.edu.cn)
英文摘要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
语种英语
WOS记录号WOS:001096721200001
出版者AMER CHEMICAL SOC
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/177511]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhou, Guangmin; Cheng, Hui-Ming
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China
3.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China
4.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518055, 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.

入库方式： OAI收割

来源：金属研究所

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