Identifying Li+ ion transport properties of aluminum doped lithium titanium phosphate solid electrolyte at wide temperature range

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	Identifying Li+ ion transport properties of aluminum doped lithium titanium phosphate solid electrolyte at wide temperature range
	Wang, SF ; Ben, LB ; Li, H ; Chen, LQ
刊名	SOLID STATE IONICS
	2014
卷号	268 页码:110
关键词	Lithium titanium phosphate Al-doping Low temperature Bulk conductivity Grain boundary conductivity Impedance analysis
ISSN号	0167-2738
通讯作者	Li, H (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	A series of Li1+xAlxTi2-x(PO4)(3) samples (x = 0-0.4) were prepared by solid state reaction and were characterized. Lattice parameters a and c decrease continuously with increase of Al content. The relative density of the Al-doped samples is about 97%, which is much higher than 75% of the undoped LiTi2(PO4)(3) sample. Detailed ac impedance measurements from - 150 degrees C to 60 degrees C reveal clearly that three electrical response regions with different relaxation time constants coexist in the undoped LiTi2(PO4)(3) sample but only two in all Al-doped samples. The bulk ionic conductivities for the Al-doped samples show no significant variation from x = 0.1 to x = 0.4. Their ionic conductivities are slightly higher than those of the undoped sample. However, this increase is not caused by increasing bulk ionic conductivity through introducing more lithium ions via doping, but it is mainly attributed to a densification effect. (C) 2014 Elsevier B.V. All rights reserved.
资助信息	Beijing ST Project [Z13111000340000]; NSFC [51325206]; Chinese Academy of Sciences [XDA09010202]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59753]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, SF,Ben, LB,Li, H,et al. Identifying Li+ ion transport properties of aluminum doped lithium titanium phosphate solid electrolyte at wide temperature range[J]. SOLID STATE IONICS,2014,268:110.
APA	Wang, SF,Ben, LB,Li, H,&Chen, LQ.(2014).Identifying Li+ ion transport properties of aluminum doped lithium titanium phosphate solid electrolyte at wide temperature range.SOLID STATE IONICS,268,110.
MLA	Wang, SF,et al."Identifying Li+ ion transport properties of aluminum doped lithium titanium phosphate solid electrolyte at wide temperature range".SOLID STATE IONICS 268(2014):110.