A robust gradient solid electrolyte interphase enables fast Zn dissolution and deposition dynamics

doi:10.1039/d3ee03422d

IMR OpenIR

	A robust gradient solid electrolyte interphase enables fast Zn dissolution and deposition dynamics
	Chang, Caiyun 1,2; Hu, Sanlue 1,2; Li, Titi 1; Zeng, Fanbin 1; Wang, Dun 1,3; Guo, Songde 1,3; Xu, Minwei 1,2; Liang, Guojin 1,2; Tang, Yongbing 1,2; Li, Hongfei 3; Han, Cuiping 1,2; Cheng, Hui-Ming 1,2,4
通讯作者	Han, Cuiping(cp.han@siat.ac.cn) ; Cheng, Hui-Ming(hm.cheng@siat.ac.cn)
	2023-12-05
发表期刊	ENERGY & ENVIRONMENTAL SCIENCE
ISSN	1754-5692
页码	15
摘要	The construction of a robust solid-electrolyte interphase (SEI) on zinc anode is an effective approach for tackling the high thermodynamic instability and side reactions of Zn-metal anode (ZMA), particularly at high current densities and high utilization ratios. Herein, a ternary aqueous electrolyte with N,N-dimethyltrifluoroacetamide (DMTFA), dimethylformamide (DMF), and H2O is developed to build a stable SEI. DMTFA is introduced as a functional solvent, which is preferentially decomposed to form a gradient rigid-soft coupling SEI layer. Meanwhile, DMF is added as a co-solvent to suppress the water activity by forming an intermolecular hydrogen bond, thus protecting the as-formed SEI against corrosion. It is found that a 31 nm-thick SEI film with a -CF3-rich-organic outer layer and a gradient zinc salts-rich-inorganic (e.g., ZnF2, Zn3N2, ZnSO3, ZnS, ZnO) inner layer delivers excellent structural integrity to block the direct contact of water and ZMA. Moreover, the as-formed SEI exhibits a high compression modulus (23.5 GPa), which is strong enough for extreme stress, such as dendrite puncture. Scanning electrochemical microscopy reveals the electron-insulating feature of the SEI, which can promote the uniform spherical zinc deposition underneath it. Consequently, AZIBs with the gradient SEI achieve ultra-long cycling stability of 4100 h in harsh conditions of 20 mA cm-2 and 20 mA h cm-2, super-high cumulative capacity of 41 A h cm-2, excellent reversibility with average coulombic efficiency of 99.8%, and an 11 000-cycle lifespan for Zn\|\|NaV3O8 cell. A robust gradient rigid-soft coupling SEI layer on the Zn surface results in the ultra-long cycling stability and the high zinc utilization rate of AZIBs.
资助者	China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; Shenzhen Science and Technology Program ; China Postdoctoral Foundation
DOI	10.1039/d3ee03422d
收录类别	SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[22379062] ; China Postdoctoral Science Foundation[22279160] ; National Natural Science Foundation of China[2021B1515120004] ; National Natural Science Foundation of China[2022A1515110672] ; Guangdong Basic and Applied Basic Research Foundation[RCYX20221008092934093] ; Guangdong Basic and Applied Basic Research Foundation[JCYJ20230807091802006] ; Shenzhen Science and Technology Program[2023M733648] ; China Postdoctoral Foundation
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS类目	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号	WOS:001125899100001
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：76[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/321006/182875
专题	中国科学院金属研究所
通讯作者	Han, Cuiping; Cheng, Hui-Ming
作者单位	1.Chinese Acad Sci, Fac Mat Sci & Energy Engn, Shenzhen Inst Adv Technol, Inst Technol Carbon Neutral, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Energy Mat Carbon Neutral, Shenzhen 518055, Peoples R China 3.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg, 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	Chang, Caiyun,Hu, Sanlue,Li, Titi,et al. A robust gradient solid electrolyte interphase enables fast Zn dissolution and deposition dynamics[J]. ENERGY & ENVIRONMENTAL SCIENCE,2023:15.
APA	Chang, Caiyun.,Hu, Sanlue.,Li, Titi.,Zeng, Fanbin.,Wang, Dun.,...&Cheng, Hui-Ming.(2023).A robust gradient solid electrolyte interphase enables fast Zn dissolution and deposition dynamics.ENERGY & ENVIRONMENTAL SCIENCE,15.
MLA	Chang, Caiyun,et al."A robust gradient solid electrolyte interphase enables fast Zn dissolution and deposition dynamics".ENERGY & ENVIRONMENTAL SCIENCE (2023):15.