气候变化领域集成服务门户(CCPortal): In situ built interphase with high interface energy and fast kinetics for high performance Zn metal anodes

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DOI	10.1039/d1ee00308a
	In situ built interphase with high interface energy and fast kinetics for high performance Zn metal anodes
	Chu Y.; Zhang S.; Wu S.; Hu Z.; Cui G.; Luo J.
发表日期	2021
ISSN	17545692
起始页码	3609
结束页码	3620
卷号	14 期号:6
英文摘要	In situconstruction of a multifunctional solid electrolyte interphase (SEI) for Zn anodes is promising to address the dendrite growth and side reactions (corrosion and hydrogen evolution) in aqueous Zn-ion batteries. However, there is a lack of constructive methods for choosing suitable SEI compounds and feasible implementation routes. Here, inspired by the SEI-design for Li-metal batteries, we identified that Zn3(PO4)2with high interface energy could suppress Zn dendrite growth effectively and ZnF2could accelerate the kinetics of Zn2+transference and deposition, and thus constructing a composite SEI mainly composed of Zn3(PO4)2and ZnF2(ZCS) is likely to improve interface deposition and electrode kinetics comprehensively. However, the high redox potential of Zn/Zn2+and H2/H+makes it difficult to develop anin situSEI for Zn anodes in aqueous electrolytesviatraditional electrochemical routes. Considering this dilemma, we take advantage of the instability of KPF6in an aqueous environment and buildin situZCS on the Zn anode through the PF6−anion-induced chemical strategy. Surprisingly, ZCS-Zn exhibits enhanced reversibility with a smooth and compact structure during long-term cycling. Both cumulative capacity (2020 mA h cm−2) and the product of the largest current density and areal capacity (10 mA cm−2× 20 mA h cm−2) applied to ZCS-Zn reach the highest levels compared with those reported in recent reports under mildly acidic conditions. This work paves a new way for designing a desirable SEI on the Zn anode and may also guide the interface engineering of other systems to overcome the intrinsic defects in constructing favorable interphases. © The Royal Society of Chemistry 2021.
英文关键词	Anodes; Corrosion; Deposition; Growth kinetics; Kinetics; Redox reactions; Solid electrolytes; Solid-State Batteries; Aqueous environment; Constructive methods; Cumulative capacity; Electrochemical routes; Hydrogen evolution; Interface deposition; Interface engineering; Solid electrolyte interphase; Zinc; aqueous solution; design; electrochemistry; electrode; electrolyte; equipment component; hydrogen; reaction kinetics; redox conditions; zinc
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190644
作者单位	Shanghai Key Lab of Advanced High-Temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory for Green Chemical Technology of Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin UniversityTianjin 300072, China; Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
推荐引用方式 GB/T 7714	Chu Y.,Zhang S.,Wu S.,et al. In situ built interphase with high interface energy and fast kinetics for high performance Zn metal anodes[J],2021,14(6).
APA	Chu Y.,Zhang S.,Wu S.,Hu Z.,Cui G.,&Luo J..(2021).In situ built interphase with high interface energy and fast kinetics for high performance Zn metal anodes.Energy & Environmental Science,14(6).
MLA	Chu Y.,et al."In situ built interphase with high interface energy and fast kinetics for high performance Zn metal anodes".Energy & Environmental Science 14.6(2021).