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

文献类型：期刊论文

作者Duan, Shanshan2; Jin, Hongyun2; Yu, Junxi3,4; Esfahani, Ehsan Nasr5; Yang, Bing1; Liu, Jiale2; Ren, Yazhou2; Chen, Ying2; Lu, Luhua2; Tian, Xiaocong2
刊名NANO ENERGY
出版日期2018-09-01
卷号51页码:19-25
ISSN号2211-2855
关键词Solid state electrolytes Li1.4Al0.4Ti1.6(PO4)(3) Non-equilibrium microstructure Spark plasma sintering
DOI10.1016/j.nanoen.2018.06.050
通讯作者Jin, Hongyun(jinhongyun@cug.edu.cn) ; Li, Jiangyu(jjli@uw.edu)
英文摘要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.
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
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000440682100003
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/128918]  
专题金属研究所_中国科学院金属研究所
通讯作者Jin, Hongyun; Li, Jiangyu
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China
3.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Nanobiomech, Shenzhen 518055, Peoples R China
4.Xiangtan Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Peoples R China
5.Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
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.

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来源：金属研究所

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