Optimum lithium-ion conductivity in cubic Li 7-xLa 3Hf 2-xTa xO 12

Asha Gupta; Ramaswamy Murugan; M. Parans Paranthaman; Zhonghe Bi; Craig A. Bridges; Masahiro Nakanishi; Alexei P. Sokolov; Kee Sung Han; E. W. Hagaman; Hui Xie; C. Buddie Mullins; John B. Goodenough

doi:10.1016/j.jpowsour.2012.02.099

Optimum lithium-ion conductivity in cubic Li _7-xLa ₃Hf _2-xTa _xO ₁₂

Asha Gupta, Ramaswamy Murugan, M. Parans Paranthaman, Zhonghe Bi, Craig A. Bridges, Masahiro Nakanishi, Alexei P. Sokolov, Kee Sung Han, E. W. Hagaman, Hui Xie, C. Buddie Mullins, John B. Goodenough

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

The nominal Li concentration giving a maximum room temperature Li-ion conductivity σ _Li ≃ 3.45 × 10 ^-4 S cm ^-1 with an E _a ≃ 0.438 eV in the system Li _7-xLa ₃Hf _2-xTa _xO ₁₂ fired in an alumina crucible at 1130 °C for 48 h occurs in the narrow range of x = 0.45 ± 0.05. The samples were prepared by solid-state reaction and characterized by XRD, SEM, electrochemical impedance spectroscopy and ⁷Li MAS NMR measurements.

Original language	English
Pages (from-to)	184-188
Number of pages	5
Journal	Journal of Power Sources
Volume	209
DOIs	https://doi.org/10.1016/j.jpowsour.2012.02.099
State	Published - Jul 1 2012

Funding

The authors at the University of Texas at Austin gratefully acknowledge The Robert A Welch Foundation of Houston, Texas [grant numbers F-1066 for JBG and F-1436 for CBM] and the Department of Energy Office of Basic Energy Science grant DE SC00005397. MPP and CAB were supported by the US Department of Energy, Basic Energy Sciences, Materials Science and Engineering Division. APS acknowledges the financial support from the LDRD Program of ORNL (LOIS 5608), managed by UT-Battelle, LLC for US Department of Energy. ZB acknowledge the support of the ORISE postdoctoral fellowship. EWH and KSH were supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy.

Funders	Funder number
Department of Energy Office of Basic Energy Science	DE SC00005397
Welch Foundation of Houston, Texas	F-1066, F-1436
U.S. Department of Energy
Basic Energy Sciences
Oak Ridge National Laboratory	LOIS 5608
Laboratory Directed Research and Development
Division of Materials Sciences and Engineering
Chemical Sciences, Geosciences, and Biosciences Division
UT-Battelle

Keywords

Garnet
Ionic conductivity
Li La Hf Ta O
Li NMR
Li-ion battery
Solid electrolyte

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2012.02.099

Cite this

@article{20ca6de06f9a4d9da420bd13273b565f,

title = "Optimum lithium-ion conductivity in cubic Li 7-xLa 3Hf 2-xTa xO 12 ",

abstract = "The nominal Li concentration giving a maximum room temperature Li-ion conductivity σ Li ≃ 3.45 × 10 -4 S cm -1 with an E a ≃ 0.438 eV in the system Li 7-xLa 3Hf 2-xTa xO 12 fired in an alumina crucible at 1130 °C for 48 h occurs in the narrow range of x = 0.45 ± 0.05. The samples were prepared by solid-state reaction and characterized by XRD, SEM, electrochemical impedance spectroscopy and 7Li MAS NMR measurements.",

keywords = "Garnet, Ionic conductivity, Li La Hf Ta O, Li NMR, Li-ion battery, Solid electrolyte",

author = "Asha Gupta and Ramaswamy Murugan and Paranthaman, {M. Parans} and Zhonghe Bi and Bridges, {Craig A.} and Masahiro Nakanishi and Sokolov, {Alexei P.} and Han, {Kee Sung} and Hagaman, {E. W.} and Hui Xie and Mullins, {C. Buddie} and Goodenough, {John B.}",

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doi = "10.1016/j.jpowsour.2012.02.099",

language = "English",

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journal = "Journal of Power Sources",

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T1 - Optimum lithium-ion conductivity in cubic Li 7-xLa 3Hf 2-xTa xO 12

AU - Gupta, Asha

AU - Murugan, Ramaswamy

AU - Paranthaman, M. Parans

AU - Bi, Zhonghe

AU - Bridges, Craig A.

AU - Nakanishi, Masahiro

AU - Sokolov, Alexei P.

AU - Han, Kee Sung

AU - Hagaman, E. W.

AU - Xie, Hui

AU - Mullins, C. Buddie

AU - Goodenough, John B.

PY - 2012/7/1

Y1 - 2012/7/1

N2 - The nominal Li concentration giving a maximum room temperature Li-ion conductivity σ Li ≃ 3.45 × 10 -4 S cm -1 with an E a ≃ 0.438 eV in the system Li 7-xLa 3Hf 2-xTa xO 12 fired in an alumina crucible at 1130 °C for 48 h occurs in the narrow range of x = 0.45 ± 0.05. The samples were prepared by solid-state reaction and characterized by XRD, SEM, electrochemical impedance spectroscopy and 7Li MAS NMR measurements.

AB - The nominal Li concentration giving a maximum room temperature Li-ion conductivity σ Li ≃ 3.45 × 10 -4 S cm -1 with an E a ≃ 0.438 eV in the system Li 7-xLa 3Hf 2-xTa xO 12 fired in an alumina crucible at 1130 °C for 48 h occurs in the narrow range of x = 0.45 ± 0.05. The samples were prepared by solid-state reaction and characterized by XRD, SEM, electrochemical impedance spectroscopy and 7Li MAS NMR measurements.

KW - Garnet

KW - Ionic conductivity

KW - Li La Hf Ta O

KW - Li NMR

KW - Li-ion battery

KW - Solid electrolyte

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