Mechanism of lithium ion diffusion in the hexad substituted Li7La3Zr2O12 solid electrolytes

doi:10.1016/j.ssi.2016.04.017

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	Mechanism of lithium ion diffusion in the hexad substituted Li7La3Zr2O12 solid electrolytes
	Gao, Y. X.; Wang, X. P.; Lu, H.; Zhang, L. C.; Ma, L.; Fang, Q. F.
刊名	SOLID STATE IONICS
	2016-08-01
卷号	291 期号:无页码:1-7
关键词	Garnet-type Oxides Li-la-m-o System Lithium Ions Diffusion Internal Friction
DOI	10.1016/j.ssi.2016.04.017
文献子类	Article
英文摘要	The Li6.4La3Zr1.7M0.3O12 (M = Mo and Cr) and Li7 - 2xLa3Zr2 - xWxO12 (X = 0.1-0.5) solid lithium-ion conductors were prepared by conventional solid state reaction method. The results indicate that partial substitutions by W and Mo ions can stabilize the garnet-like cubic phase of Li-La-Zr-0 at room temperature, while the Cr ions substitution cannot even at a content of 15 mol%. The total conductivity of the Li7 - 2xLa3Zr2 - xWxO12 lithium conductor is the highest at x = 0.2 (8.7 x 10(-5) S/cm), and decreases with the increasing W substituting concentration. The Li6.4La3Zr1.7Mo0.3O12 has a higher total conductivity than that of Li6.4La3Zr1.7W0.3O12. Different from one apparent peak in the Li7La3Zr2O12 samples, two prominent relaxation-type internal friction peaks related to the short range diffusion of lithium ions were observed in each W or Mo substituted Li7La3Zr2012 compounds. The high-temperature IF peaks locate at about 365.9 K and 358.9 K at 1 Hz, corresponding to an activation energy of 0.49 and 0.51 eV for the W and Mo substituted Li7La3Zr2O12 compounds, respectively. Considering the crystalline structure, it was suggested that the lithium ionic diffusion between 48g(96h)-24d corresponds to the low-temperature peak and 48g(96h)-48g(96h) to the high-temperature peak. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	CUBIC LI7LA3ZR2O12 ; INTERNAL-FRICTION ; CRYSTAL-STRUCTURE ; GARNET ; CONDUCTIVITY ; FABRICATION ; BATTERIES
WOS研究方向	Chemistry ; Physics
语种	英语
WOS记录号	WOS:000378463800001
资助机构	National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; National Natural Science Foundation of China(51401203 ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY006) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; Shanxi Provincial Natural Science Foundation(15JK1833) ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 51301186 ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305) ; 11274305)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/22133]
专题	合肥物质科学研究院_中科院固体物理研究所
作者单位	Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Gao, Y. X.,Wang, X. P.,Lu, H.,et al. Mechanism of lithium ion diffusion in the hexad substituted Li7La3Zr2O12 solid electrolytes[J]. SOLID STATE IONICS,2016,291(无):1-7.
APA	Gao, Y. X.,Wang, X. P.,Lu, H.,Zhang, L. C.,Ma, L.,&Fang, Q. F..(2016).Mechanism of lithium ion diffusion in the hexad substituted Li7La3Zr2O12 solid electrolytes.SOLID STATE IONICS,291(无),1-7.
MLA	Gao, Y. X.,et al."Mechanism of lithium ion diffusion in the hexad substituted Li7La3Zr2O12 solid electrolytes".SOLID STATE IONICS 291.无(2016):1-7.