Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)(3) superionic conductor by spark plasma sintering for enhanced ionic conductivity

doi:10.1016/j.nanoen.2018.06.050

IMR OpenIR

	Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)(3) superionic conductor by spark plasma sintering for enhanced ionic conductivity
	Duan, Shanshan 1; Jin, Hongyun 1; Yu, Junxi 2,3; Esfahani, Ehsan Nasr 4; Yang, Bing 5; Liu, Jiale 1; Ren, Yazhou 1; Chen, Ying 1; Lu, Luhua 1; Tian, Xiaocong 1; Hou, Shuen 1; Li, Jiangyu 2,4
通讯作者	Jin, Hongyun(jinhongyun@cug.edu.cn) ; Li, Jiangyu(jjli@uw.edu)
	2018-09-01
发表期刊	NANO ENERGY
ISSN	2211-2855
卷号	51 页码:19-25
摘要	In solid-state electrolytes, the large resistance at grain boundaries remains the bottleneck for high ionic conductivity. Here we develop an alternative and somewhat counterintuitive strategy to enhance their ionic conductivity via non-equilibrium microstructure. Using Li1.4Al0.4Ti1.6(PO4)(3) as an example, we demonstrate that semi-crystalline interphase between well crystallized ceramic phase and amorphous glass phase can be induced by spark plasma sintering, resulting in total ionic conductivity of 1.3 x 10(-3) S cm(-1) without any doping, which is 2 orders of magnitude higher than that derived by the conventional method. It is further demonstrated that the non-equilibrium structure is stable in ambient condition, yet can be converted into equilibrium structure by annealing with higher crystallinity but much lower ionic conductivity, proving that the non-equilibrium structure is indeed the key to the high performance. This opens door for its applications in electric vehicles, and the strategy is applicable to other ionic systems as well.
关键词	Solid state electrolytes Li1.4Al0.4Ti1.6(PO4)(3) Non-equilibrium microstructure Spark plasma sintering
资助者	National Key Research Program of China ; National Natural Science Foundation of China ; Shenzhen Science and Technology Innovation Committee ; National Science Foundation ; Leading Talents Program of Guangdong Province ; Hubei science and technology innovation project ; China University of Geosciences (Wuhan) Innovation and Entrepreneurship Training Program
DOI	10.1016/j.nanoen.2018.06.050
收录类别	SCI
语种	英语
资助项目	National Key Research Program of China[2016YFA0201001] ; National Natural Science Foundation of China[NSFC 51102218] ; National Natural Science Foundation of China[51402309] ; National Natural Science Foundation of China[11472236] ; National Natural Science Foundation of China[11627801] ; Shenzhen Science and Technology Innovation Committee[JCYJ20170818155813437] ; National Science Foundation[CBET-1435968] ; Leading Talents Program of Guangdong Province[2016LJ06C372] ; Hubei science and technology innovation project[2018AAA015] ; Hubei science and technology innovation project[2017AAA112] ; China University of Geosciences (Wuhan) Innovation and Entrepreneurship Training Program[201710491028]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000440682100003
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/128919
专题	中国科学院金属研究所
通讯作者	Jin, Hongyun; Li, Jiangyu
作者单位	1.China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Nanobiomech, Shenzhen 518055, Peoples R China 3.Xiangtan Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Peoples R China 4.Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Duan, Shanshan,Jin, Hongyun,Yu, Junxi,et al. Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)(3) superionic conductor by spark plasma sintering for enhanced ionic conductivity[J]. NANO ENERGY,2018,51:19-25.
APA	Duan, Shanshan.,Jin, Hongyun.,Yu, Junxi.,Esfahani, Ehsan Nasr.,Yang, Bing.,...&Li, Jiangyu.(2018).Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)(3) superionic conductor by spark plasma sintering for enhanced ionic conductivity.NANO ENERGY,51,19-25.
MLA	Duan, Shanshan,et al."Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)(3) superionic conductor by spark plasma sintering for enhanced ionic conductivity".NANO ENERGY 51(2018):19-25.