A Nonflammable Electrolyte for High-Voltage Lithium Metal Batteries

doi:10.1021/acsenergylett.3c00706

	A Nonflammable Electrolyte for High-Voltage Lithium Metal Batteries
	Zhang, Guangzhao 1; Li, Jiawei 2; Wang, Qingrong 1; Wang, Hui3 ; Wang, Jun 1; Yu, Kai 1; Chang, Jian 1; Wang, Chaoyang 3; Hong, Xiang 4; Ma, Qiang4 ; Deng, Yonghong 1
	2023-06-02
发表期刊	ACS ENERGY LETTERS
ISSN	2380-8195
页码	10
通讯作者	Zhang, Guangzhao(zhanggz@sustech.edu.cn) ; Ma, Qiang(maqiang11@huawei.com) ; Deng, Yonghong(yhdeng08@163.com)
摘要	The electrochemical instability of the polar solventsin electrolytesoften causes reduction/oxidation at the surface of both Li anodesand nickel-rich cathodes in high-voltage lithium metal batteries (LMBs).Here, we design a bipolar molecule-regulated electrolyte with a capsule-likesolvation structure and nonflammability to stabilize high-voltageLMBs. The key enabler is to design and synthesize a nonflammable bipolarmolecule with a ion-dissociative polar head and a perfluorinated nonpolartail. The bipolar solvent promotes the formation of capsule-like solvationsheaths via weak coordination and encapsulates the polar moleculesinside the primary solvation shell, drastically reducing the detrimentaldecomposition of solvents. Finally, the assembled high-voltage cellprovides high capacity retention (Li\|\|LiNi0.8Co0.1Mn0.1O2: >90%) during 200 charge/dischargecycles under strict conditions. The capsule-like electrolyte alsoenables a 420 mAh pouch cell with a cell-level energy density of 440Wh kg(-1) along with long cycling stability over 150cycles (retention: 92%).
DOI	10.1021/acsenergylett.3c00706
收录类别	SCI
语种	英语
资助项目	Key-Area Research and Development Program of Guangdong Province[2020B090919001] ; National Natural Science Foundation of China[22109066] ; National Natural Science Foundation of China[22078144] ; Natural Science Foundation of Guangdong Province[2022A1515011005] ; Natural Science Foundation of Guangdong Province[2023A1515010686] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110881] ; Shenzhen Science and Technology Program[JCYJ20220818100218040] ; Science and Technology Planning Project of Guangdong Province[2021A0505110001]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001008138100001
出版者	AMER CHEMICAL SOC
WOS关键词	HIGH-ENERGY ; ANODES ; DESIGN
引用统计	被引频次：7[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/337002/182232
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhang, Guangzhao; Ma, Qiang; Deng, Yonghong
作者单位	1.Southern Univ Sci & Technol, 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.South China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Peoples R China 4.Huawei Technol Co Ltd, Cent Res Inst, Watt Lab, Shenzhen 518129, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guangzhao,Li, Jiawei,Wang, Qingrong,et al. A Nonflammable Electrolyte for High-Voltage Lithium Metal Batteries[J]. ACS ENERGY LETTERS,2023:10.
APA	Zhang, Guangzhao.,Li, Jiawei.,Wang, Qingrong.,Wang, Hui.,Wang, Jun.,...&Deng, Yonghong.(2023).A Nonflammable Electrolyte for High-Voltage Lithium Metal Batteries.ACS ENERGY LETTERS,10.
MLA	Zhang, Guangzhao,et al."A Nonflammable Electrolyte for High-Voltage Lithium Metal Batteries".ACS ENERGY LETTERS (2023):10.