Flexible and ion-conducting membrane electrolytes for solid-state lithium batteries: Dispersion of garnet nanoparticles in insulating polyethylene oxide

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 结构陶瓷与复合材料工程研究中心 > 期刊论文

	Flexible and ion-conducting membrane electrolytes for solid-state lithium batteries: Dispersion of garnet nanoparticles in insulating polyethylene oxide
	Zhang, Jingxian 1,2; Zhao, Ning 2; Zhang, Miao 1; Li, Yiqiu 2; Chu, Paul K.3; Guo, Xiangxin 2; Di, Zengfeng 1; Wang, Xi 1; Li, Hong 4
刊名	NANO ENERGY
	2016-10-01
卷号	28 页码:447-454
关键词	Flexible solid-state electrolyte Ionic conductivity Percolation behavior Solid-state lithium battery
英文摘要	Solid-state electrolytes with high ionic conductivity, large electrochemical window, good mechanical properties, and easy processability are needed for high-energy solid-state lithium batteries. In this work, composite membranes consisting of lithium garnet (i.e. Li6.4La3Zr1.4Ta0.6O12, LLZTO) particles and Li-salt-free polyethylene oxides (PEOs) are produced as solid-state electrolytes. Li-ion-conducting particles in nano-scale are crucial for the enhancement of conductivity and the membranes containing similar to 40 nm LLZTO particles exhibit conductivities nearly two orders of magnitude larger than those with the micro scale ones, which is attributed to the difference in specific surface area related to the percolation effect. Compared to the conventional PEO doped with lithium salt, the insulating PEO in PEO:LLZTO membrane electrolyte is conducive to the suppression of lithium dendrite growth owing to prohibition of current flow. With PEO:LLZTO membrane electrolytes in conductivity of 2.1 x 10(-4) S cm(-1) at 30 degrees C and 5.6 x 10(-4) S cm(-1) at 60 degrees C, the solid-state LiFePO4/PEO:LLZTO/Li and LiFe0.15Mn0.85PO4/PEO:LLZTO/Li cells deliver energy densities of 345 Wh kg(-1) (662 Wh L-1) and 405 Wh kg(-1) (700 Wh L-1) (without the package weight or volume) with good rate capability and cycling performance. This study suggests that the conjunction of nano-scale Li-ion-conducting particles and an insulating polymer provides a promising solution to produce powerful solid-state electrolytes for high-performance solid-state lithium batteries. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	COMPOSITE POLYMER ELECTROLYTES ; CERAMIC ELECTROLYTES ; ENHANCEMENT ; TEMPERATURE ; STABILITY ; INSIGHTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000384911600052
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/22029]
专题	上海硅酸盐研究所_结构陶瓷与复合材料工程研究中心_期刊论文
作者单位	1.Chinese Acad Sci, SIMIT, State Key Lab Funct Mat Informat, 865 Changning Rd, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, SICCAS, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 3.City Univ Hong Kong, Dept Phys & Mat Sci, 83 Tat Chee Ave, Kowloon, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Phys, 8 Zhongguancun South 3rd St, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jingxian,Zhao, Ning,Zhang, Miao,et al. Flexible and ion-conducting membrane electrolytes for solid-state lithium batteries: Dispersion of garnet nanoparticles in insulating polyethylene oxide[J]. NANO ENERGY,2016,28:447-454.
APA	Zhang, Jingxian.,Zhao, Ning.,Zhang, Miao.,Li, Yiqiu.,Chu, Paul K..,...&Li, Hong.(2016).Flexible and ion-conducting membrane electrolytes for solid-state lithium batteries: Dispersion of garnet nanoparticles in insulating polyethylene oxide.NANO ENERGY,28,447-454.
MLA	Zhang, Jingxian,et al."Flexible and ion-conducting membrane electrolytes for solid-state lithium batteries: Dispersion of garnet nanoparticles in insulating polyethylene oxide".NANO ENERGY 28(2016):447-454.