| Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)(3) superionic conductor by spark plasma sintering for enhanced ionic conductivity | |
| Duan, Shanshan1; Jin, Hongyun1; Yu, Junxi2,3; Esfahani, Ehsan Nasr4; Yang, Bing5; Liu, Jiale1; Ren, Yazhou1; Chen, Ying1; Lu, Luhua1; Tian, Xiaocong1; Hou, Shuen1; Li, Jiangyu2,4 | |
| Corresponding Author | Jin, Hongyun(jinhongyun@cug.edu.cn) ; Li, Jiangyu(jjli@uw.edu) |
| 2018-09-01 | |
| Source Publication | NANO ENERGY
 |
| ISSN | 2211-2855 |
| Volume | 51Pages:19-25 |
| Abstract | 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. |
| Keyword | Solid state electrolytes Li1.4Al0.4Ti1.6(PO4)(3) Non-equilibrium microstructure Spark plasma sintering |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000440682100003 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/128919 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Jin, Hongyun; Li, Jiangyu |
| Affiliation | 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 |
| Recommended Citation 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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