Li6La3SnMO12 (M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity

Hui Xie; Yutao Li; Jiantao Han; Long Wang; Maowen Xu; Asha Gupta; John B. Goodenough; Youzhong Dong; M. Parans Paranthaman; Zhonghe Bi; Craig A. Bridges; Masahiro Nakanishi; Alexei P. Sokolov

doi:10.1149/2.009208jes

Li₆La₃SnMO₁₂ (M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity

Hui Xie, Yutao Li, Jiantao Han, Long Wang, Maowen Xu, Asha Gupta, John B. Goodenough, Youzhong Dong, M. Parans Paranthaman, Zhonghe Bi, Craig A. Bridges, Masahiro Nakanishi, Alexei P. Sokolov

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Abstract

In order to investigate the influence of covalent bonding within the garnet framework on the conductivity of Li⁺ in the interstitial space, the Li⁺ conductivities in the family of Sn-based compounds Li₆La₃SnMO₁₂ (M = Sb, Nb, Ta) have been obtained and are compared with those of Li ₆La₃ZrMO₁₂. Refinement of the neutron diffraction pattern of Li₆La₃SnMO₁₂ shows that the interstitial tetrahedral sites (24d) are about half-occupied and most of the Li in the interstitial bridging octahedral sites are displaced from the center position (48g). The Sb-based compound has the largest lattice parameter while the Ta-based compound has the highest Li⁺-ion conductivity of 0.42x 10^-4 S cm^-1.

Original language	English
Pages (from-to)	A1148-A1151
Journal	Journal of the Electrochemical Society
Volume	159
Issue number	8
DOIs	https://doi.org/10.1149/2.009208jes
State	Published - Jan 2012

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title = "Li6La3SnMO12 (M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity",

abstract = "In order to investigate the influence of covalent bonding within the garnet framework on the conductivity of Li+ in the interstitial space, the Li+ conductivities in the family of Sn-based compounds Li6La3SnMO12 (M = Sb, Nb, Ta) have been obtained and are compared with those of Li 6La3ZrMO12. Refinement of the neutron diffraction pattern of Li6La3SnMO12 shows that the interstitial tetrahedral sites (24d) are about half-occupied and most of the Li in the interstitial bridging octahedral sites are displaced from the center position (48g). The Sb-based compound has the largest lattice parameter while the Ta-based compound has the highest Li+-ion conductivity of 0.42x 10-4 S cm-1.",

author = "Hui Xie and Yutao Li and Jiantao Han and Long Wang and Maowen Xu and Asha Gupta and Goodenough, {John B.} and Youzhong Dong and Paranthaman, {M. Parans} and Zhonghe Bi and Bridges, {Craig A.} and Masahiro Nakanishi and Sokolov, {Alexei P.}",

year = "2012",

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doi = "10.1149/2.009208jes",

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volume = "159",

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TY - JOUR

T1 - Li6La3SnMO12 (M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity

AU - Xie, Hui

AU - Li, Yutao

AU - Han, Jiantao

AU - Wang, Long

AU - Xu, Maowen

AU - Gupta, Asha

AU - Goodenough, John B.

AU - Dong, Youzhong

AU - Paranthaman, M. Parans

AU - Bi, Zhonghe

AU - Bridges, Craig A.

AU - Nakanishi, Masahiro

AU - Sokolov, Alexei P.

PY - 2012/1

Y1 - 2012/1

N2 - In order to investigate the influence of covalent bonding within the garnet framework on the conductivity of Li+ in the interstitial space, the Li+ conductivities in the family of Sn-based compounds Li6La3SnMO12 (M = Sb, Nb, Ta) have been obtained and are compared with those of Li 6La3ZrMO12. Refinement of the neutron diffraction pattern of Li6La3SnMO12 shows that the interstitial tetrahedral sites (24d) are about half-occupied and most of the Li in the interstitial bridging octahedral sites are displaced from the center position (48g). The Sb-based compound has the largest lattice parameter while the Ta-based compound has the highest Li+-ion conductivity of 0.42x 10-4 S cm-1.

AB - In order to investigate the influence of covalent bonding within the garnet framework on the conductivity of Li+ in the interstitial space, the Li+ conductivities in the family of Sn-based compounds Li6La3SnMO12 (M = Sb, Nb, Ta) have been obtained and are compared with those of Li 6La3ZrMO12. Refinement of the neutron diffraction pattern of Li6La3SnMO12 shows that the interstitial tetrahedral sites (24d) are about half-occupied and most of the Li in the interstitial bridging octahedral sites are displaced from the center position (48g). The Sb-based compound has the largest lattice parameter while the Ta-based compound has the highest Li+-ion conductivity of 0.42x 10-4 S cm-1.

UR - http://www.scopus.com/inward/record.url?scp=85016886830&partnerID=8YFLogxK

U2 - 10.1149/2.009208jes

DO - 10.1149/2.009208jes

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SN - 0013-4651

VL - 159

SP - A1148-A1151

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 8

ER -

Li₆La₃SnMO₁₂ (M = Sb, Nb, Ta), a Family of Lithium Garnets with High Li-Ion Conductivity

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