气候变化领域集成服务门户(CCPortal): Regulated lithium plating and stripping by a nano-scale gradient inorganic-organic coating for stable lithium metal anodes

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DOI	10.1039/d1ee01140e
	Regulated lithium plating and stripping by a nano-scale gradient inorganic-organic coating for stable lithium metal anodes
	Sun Y.; Zhao C.; Adair K.R.; Zhao Y.; Goncharova L.V.; Liang J.; Wang C.; Li J.; Li R.; Cai M.; Sham T.-K.; Sun X.
发表日期	2021
ISSN	17545692
起始页码	4085
结束页码	4094
卷号	14 期号:7
英文摘要	An intrinsic challenge of the Li metal anode (LMA) that hinders its application is the formation of an unstable solid electrolyte interphase (SEI), which causes uncontrollable Li plating/stripping and deteriorates the cycling stability. While it is desirable to fabricate a robust artificial SEI to stabilize Li, it remains highly challenging to manipulate the composition of the protective film with high precision. Herein, we report a functional 'gradient coating' of mechanically enhanced hybrid inorganic-organic polyurea achieved by molecular layer deposition (MLD) for highly stable LMAs. The electrically insulating polymer on the coating surface can confine the electro-deposition of Li and tolerate the volume change due to its good flexibility, while the inner inorganic lithiophilic sites can effectively facilitate and regulate uniform Li nucleation and deposition. Owing to this elaborate interphase design, the protected Li can extend the cycling life significantly at a high current density of 6 mA cm-2. Furthermore, as a proof of concept for application in Li metal batteries (LMBs), stable cycling for over 1500 hours in Li-O2 batteries was achieved. This work demonstrates an innovative nano-scale protective film design for LMAs and creates new opportunities for the realization of high performance next-generation batteries. © The Royal Society of Chemistry.
英文关键词	Anodes; Atomic layer deposition; Lithium compounds; Lithium-air batteries; Nanotechnology; Organic coatings; Solid electrolytes; Gradient coatings; High current densities; Hybrid inorganic-organic; Inorganic-organic; Insulating polymer; Lithium metal anode; Molecular layer depositions (MLD); Solid electrolyte interphase; Lithium; coating; electrode; electrolyte; environmental gradient; lithium; nanoparticle
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/190615
作者单位	Department of Mechanical and Materials Engineering, University of Western Ontario, London, ON N6A 5B9, Canada; Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada; Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7, Canada; General Motors RandD Center, Warren, MI 48090-9055, United States
推荐引用方式 GB/T 7714	Sun Y.,Zhao C.,Adair K.R.,et al. Regulated lithium plating and stripping by a nano-scale gradient inorganic-organic coating for stable lithium metal anodes[J],2021,14(7).
APA	Sun Y..,Zhao C..,Adair K.R..,Zhao Y..,Goncharova L.V..,...&Sun X..(2021).Regulated lithium plating and stripping by a nano-scale gradient inorganic-organic coating for stable lithium metal anodes.Energy & Environmental Science,14(7).
MLA	Sun Y.,et al."Regulated lithium plating and stripping by a nano-scale gradient inorganic-organic coating for stable lithium metal anodes".Energy & Environmental Science 14.7(2021).