Beyond LiF: Tailoring Li<sub>2</sub>O-Dominated Solid Electrolyte Interphase for Stable Lithium Metal Batteries

doi:10.1021/acsnano.3c07038

	Beyond LiF: Tailoring Li₂O-Dominated Solid Electrolyte Interphase for Stable Lithium Metal Batteries
	Zeng, Huipeng 1; Yu, Kai 1; Li, Jiawei 2; Yuan, Mingman 1; Wang, Junjie 1; Wang, Qingrong 1; Lai, Anjie 1; Jiang, Yidong 1; Yan, Xu 1; Zhang, Guangzhao 1; Xu, Hongli 1; Wang, Jun 1; Huang, Wei 3; Wang, Chaoyang 4; Deng, Yonghong 1; Chi, Shang-Sen 1
	2024-01-11
发表期刊	ACS NANO
ISSN	1936-0851
卷号	18 期号:3 页码:1969-1981
通讯作者	Deng, Yonghong([email protected]) ; Chi, Shang-Sen([email protected])
摘要	The components and structures of the solid-electrolyte interphase (SEI) are critical for stable cycling of lithium metal batteries (LMBs). LiF has been widely studied as the dominant component of SEI, but Li2O, which has a much lower diffusion barrier for Li+, has rarely been investigated as the dominant component of SEI. The effect of Li2O-dominated SEI on electrochemical performance still remains elusive. Herein, an ultrastrong coordinated cosolvation diluent, 2,3-difluoroethoxybenzene (DFEB), is designed to modulate solvation structure and tailor Li2O-dominated SEI for stable LMBs. In the DFEB-based LHCE (DFEB-LHCE), DFEB intensively participates in the first solvation shell and synergizes with FSI- to tailor an Li2O-dominated inorganic-rich SEI which is different from the LiF-dominated SEI formed in conventional LHCE. Benefiting from this special SEI architecture, a high Coulombic efficiency (CE) of 99.58% in Li\|\|Cu half cells, stable voltage profiles, and dense and uniform lithium deposition, as well as effective inhibition of Li dendrite formation in the symmetrical cell, are achieved. More importantly, the DFEB-LHCE can be matched with various cathodes such as LFP, NCM811, and S cathodes, and the Li\|\|LFP full cell using DFEB-LHCE possesses 85% capacity retention after 650 stable cycles with 99.9% CE. Especially the 1.5 Ah practical lithium metal pouch cell achieves an excellent capacity retention of 89% after 250 cycles with a superb average CE of 99.93%. This work unravels the superiority of the Li2O-dominated SEI and the feasibility of tailoring SEI components through modulation of solvation structures.
关键词	lithium metal batteries lithium oxide solidelectrolyte interphase localized high-concentration electrolytes cosolventization solvation structures
DOI	10.1021/acsnano.3c07038
收录类别	SCI
语种	英语
资助项目	Science and Technology Planning Project of Guangdong Province[2020B090919001]; Key-Area Research and Development Program of Guangdong Province[22279051]; Key-Area Research and Development Program of Guangdong Province[22078144]; National Natural Science Foundation of China[2021A0505110001]; Science and Technology Planning Project of Guangdong Province[2023A1515010985]; Science and Technology Planning Project of Guangdong Province[2021A1515010138]; Guangdong Basic and Applied Basic Research Foundation[JCYJ20220530114408018]; Shenzhen Science and Technology Program; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001148236200001
出版者	AMER CHEMICAL SOC
WOS关键词	EFFICIENCY ; ANODE
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184330
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Deng, Yonghong; Chi, Shang-Sen
作者单位	1.Southern Univ Sci & Technol, Sch Innovat & Entrepreneurship, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 3.Southern Univ Sci & Technol, Natl Ctr Appl Math Shenzhen NCAMS, Shenzhen 518055, Peoples R China 4.South China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Huipeng,Yu, Kai,Li, Jiawei,et al. Beyond LiF: Tailoring Li₂O-Dominated Solid Electrolyte Interphase for Stable Lithium Metal Batteries[J]. ACS NANO,2024,18(3):1969-1981.
APA	Zeng, Huipeng.,Yu, Kai.,Li, Jiawei.,Yuan, Mingman.,Wang, Junjie.,...&Chi, Shang-Sen.(2024).Beyond LiF: Tailoring Li₂O-Dominated Solid Electrolyte Interphase for Stable Lithium Metal Batteries.ACS NANO,18(3),1969-1981.
MLA	Zeng, Huipeng,et al."Beyond LiF: Tailoring Li₂O-Dominated Solid Electrolyte Interphase for Stable Lithium Metal Batteries".ACS NANO 18.3(2024):1969-1981.