气候变化领域集成服务门户(CCPortal): Three-dimensional bilayer garnet solid electrolyte based high energy density lithium metal-sulfur batteries

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DOI	10.1039/c7ee01004d
	Three-dimensional bilayer garnet solid electrolyte based high energy density lithium metal-sulfur batteries
	Fu K.; Gong Y.; Hitz G.T.; McOwen D.W.; Li Y.; Xu S.; Wen Y.; Zhang L.; Wang C.; Pastel G.; Dai J.; Liu B.; Xie H.; Yao Y.; Wachsman E.D.; Hu L.
发表日期	2017
ISSN	17545692
起始页码	1568
结束页码	1575
卷号	10 期号:7
英文摘要	To simultaneously address the challenges of chemical/physical short circuits and electrode volume variation, we demonstrate a three-dimensional (3D) bilayer garnet solid-state electrolyte framework for advanced Li metal batteries. The dense layer is reduced in thickness to a few microns and still retains good mechanical stability, thereby enabling the safe use of Li metal anodes. The thick porous layer acts as a mechanical support for the thin dense layer which serves as a host for high loading of cathode materials and provides pathways for continuous ion transport. Results show that the integrated sulfur cathode loading can reach >7 mg cm-2 while the proposed hybrid Li-S battery exhibits a high initial coulombic efficiency (>99.8%) and high average coulombic efficiency (>99%) during the subsequent cycles. This electrolyte framework represents a promising strategy to revolutionize Li-metal batteries by transitioning to all-solid-state batteries and can be extended to other cathode materials. © The Royal Society of Chemistry 2017.
英文关键词	Cathodes; Electric batteries; Electrodes; Electrolytes; Garnets; Lithium; Lithium batteries; Lithium sulfur batteries; Mechanical stability; Metals; Sulfur; All-solid state batteries; Cath-ode materials; Coulombic efficiency; High energy densities; Initial Coulombic efficiency; Mechanical support; Solid-state electrolyte; Threedimensional (3-d); Solid electrolytes; electrode; electrolyte; electronic equipment; energy efficiency; garnet; lithium; mechanical property; physicochemical property; sulfur; three-dimensional modeling
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/190462
作者单位	University of Maryland Energy Research Center, University of Maryland, College Park, MD 20742, United States; Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, United States
推荐引用方式 GB/T 7714	Fu K.,Gong Y.,Hitz G.T.,et al. Three-dimensional bilayer garnet solid electrolyte based high energy density lithium metal-sulfur batteries[J],2017,10(7).
APA	Fu K..,Gong Y..,Hitz G.T..,McOwen D.W..,Li Y..,...&Hu L..(2017).Three-dimensional bilayer garnet solid electrolyte based high energy density lithium metal-sulfur batteries.Energy & Environmental Science,10(7).
MLA	Fu K.,et al."Three-dimensional bilayer garnet solid electrolyte based high energy density lithium metal-sulfur batteries".Energy & Environmental Science 10.7(2017).