In-situ construction of stable cathode/Li interfaces simultaneously via different electron density azo compounds for solid-state lithium metal batteries

doi:10.1016/j.ensm.2021.05.035

	In-situ construction of stable cathode/Li interfaces simultaneously via different electron density azo compounds for solid-state lithium metal batteries
	Li, Jin 2,3; Huo, Feng 2; Chen, Tianhua 1; Yan, Hanwen 2; Yang, Yaxi 2; Zhang, Suojiang 2; Chen, Shimou 2,4
刊名	ENERGY STORAGE MATERIALS
	2021-09-01
卷号	40 页码:394-401
关键词	Lithium metal battery Solid-state electrolyte Azo compounds Interface Different electron density
ISSN号	2405-8297
DOI	10.1016/j.ensm.2021.05.035
英文摘要	The poor compatibility of the electrodes-electrolyte interfaces of rechargeable lithium metal batteries (LMBs) with solid-state electrolytes (SSEs) limit their wide applications. Herein, azo compounds as additive are firstly applied in SSEs and we propose a mechanism of regulating the cathode/anode interfaces by azo compounds with different electron groups in SSEs. Through in-situ constructing, the free radicals formed by electron-withdrawing/electron-donating group can be grafted onto different electrodes on demand, thereby forming stable interfaces at both cathode and anode sides, which effectively improves SSEs compatibility in LMBs. Consequently, superior cycling stability is demonstrated by Li/LiFePO4 (LFP), Li/LiNi0.5Co0.2Mn0.3O2 (NCM523) and Li-S full batteries. The reaction mechanism is confirmed by density functional theory calculations, various electrochemical characterizations, and applying designed azo compounds. This new and universal strategy may pave a way to resolve the bottle-neck interfacial issues of lithium metal batteries by organic compounds.
资助项目	National Natural Science Foundation of China[51922099] ; National Natural Science Foundation of China[21890762] ; Innovation Academy for Lightduty Gas Turbine, Chinese Academy of Sciences[CXYJJ20MS05] ; Natural Science Foundation of Hebei Province[E2020103052] ; Fundamental Research Funds for the Central Universities
WOS关键词	POLYMER ELECTROLYTE ; HIGH-PERFORMANCE ; LIQUID ; PROGRESS ; ORIGIN ; IONS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000667478900002
资助机构	National Natural Science Foundation of China ; Innovation Academy for Lightduty Gas Turbine, Chinese Academy of Sciences ; Natural Science Foundation of Hebei Province ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49277]
专题	中国科学院过程工程研究所
通讯作者	Zhang, Suojiang; Chen, Shimou
作者单位	1.Univ Adelaide, Sch Chem Engn & Adv Mat, Adelaide, SA 5005, Australia 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li, Jin,Huo, Feng,Chen, Tianhua,et al. In-situ construction of stable cathode/Li interfaces simultaneously via different electron density azo compounds for solid-state lithium metal batteries[J]. ENERGY STORAGE MATERIALS,2021,40:394-401.
APA	Li, Jin.,Huo, Feng.,Chen, Tianhua.,Yan, Hanwen.,Yang, Yaxi.,...&Chen, Shimou.(2021).In-situ construction of stable cathode/Li interfaces simultaneously via different electron density azo compounds for solid-state lithium metal batteries.ENERGY STORAGE MATERIALS,40,394-401.
MLA	Li, Jin,et al."In-situ construction of stable cathode/Li interfaces simultaneously via different electron density azo compounds for solid-state lithium metal batteries".ENERGY STORAGE MATERIALS 40(2021):394-401.