Synthesis and ionic conductivity studies of In- and Y-doped Li6Hf2O7 as solid-state electrolyte for all-solid state Li-ion batteries

M. Amores; S. A. Corr; E. J. Cussen

doi:10.1149/2.06011701jes

Synthesis and ionic conductivity studies of In- and Y-doped Li6Hf2O7 as solid-state electrolyte for all-solid state Li-ion batteries

M. Amores, S. A. Corr, E. J. Cussen

Pure And Applied Chemistry

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Abstract

The development of all solid-state lithium batteries is reliant on suitable high performance solid state electrolytes. Here, we present the synthesis and ionic conductivity of the In- and Y-doped Li6Hf2O7 materials; Li6+xHf2-xMxO7 (M = In3+, Y3+). Microwave-assisted synthesis was used to give phase pure material after heating for 4 hours at 850 oC. The ionic conductivity of the materials is increased with the insertion of interstitial lithium ion within the structure from 0.02 to 0.25 mS cm-1 at 174 oC and the activation energy for ionic conduction is lowered from 0.97(4) eV to 0.42(3) eV with respect to the undoped material.

Original language	English
Pages (from-to)	A6395-A6400
Number of pages	6
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	1
DOIs	https://doi.org/10.1149/2.06011701jes
Publication status	Published - 21 Jan 2017

Keywords

solid state lithoum batteries
electrolytes
ionic conductivity
synthesis

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10.1149/2.06011701jesLicence: CC BY 4.0

Amores-etal-JES-2017-Synthesis-and-ionic-conductivity-studies-of-In--and-Y-doped-Li6Hf2O7Final published version, 1.25 MBLicence: CC BY 4.0

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1 Finished

Design and high throughput microwave synthesis of Li-ion battery materials
Cussen, E.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/15 → 30/09/19
Project: Research

Cite this

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title = "Synthesis and ionic conductivity studies of In- and Y-doped Li6Hf2O7 as solid-state electrolyte for all-solid state Li-ion batteries",

abstract = "The development of all solid-state lithium batteries is reliant on suitable high performance solid state electrolytes. Here, we present the synthesis and ionic conductivity of the In- and Y-doped Li6Hf2O7 materials; Li6+xHf2-xMxO7 (M = In3+, Y3+). Microwave-assisted synthesis was used to give phase pure material after heating for 4 hours at 850 oC. The ionic conductivity of the materials is increased with the insertion of interstitial lithium ion within the structure from 0.02 to 0.25 mS cm-1 at 174 oC and the activation energy for ionic conduction is lowered from 0.97(4) eV to 0.42(3) eV with respect to the undoped material.",

keywords = "solid state lithoum batteries, electrolytes, ionic conductivity , synthesis",

author = "M. Amores and Corr, {S. A.} and Cussen, {E. J.}",

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AU - Amores, M.

AU - Corr, S. A.

AU - Cussen, E. J.

PY - 2017/1/21

Y1 - 2017/1/21

N2 - The development of all solid-state lithium batteries is reliant on suitable high performance solid state electrolytes. Here, we present the synthesis and ionic conductivity of the In- and Y-doped Li6Hf2O7 materials; Li6+xHf2-xMxO7 (M = In3+, Y3+). Microwave-assisted synthesis was used to give phase pure material after heating for 4 hours at 850 oC. The ionic conductivity of the materials is increased with the insertion of interstitial lithium ion within the structure from 0.02 to 0.25 mS cm-1 at 174 oC and the activation energy for ionic conduction is lowered from 0.97(4) eV to 0.42(3) eV with respect to the undoped material.

AB - The development of all solid-state lithium batteries is reliant on suitable high performance solid state electrolytes. Here, we present the synthesis and ionic conductivity of the In- and Y-doped Li6Hf2O7 materials; Li6+xHf2-xMxO7 (M = In3+, Y3+). Microwave-assisted synthesis was used to give phase pure material after heating for 4 hours at 850 oC. The ionic conductivity of the materials is increased with the insertion of interstitial lithium ion within the structure from 0.02 to 0.25 mS cm-1 at 174 oC and the activation energy for ionic conduction is lowered from 0.97(4) eV to 0.42(3) eV with respect to the undoped material.

KW - solid state lithoum batteries

KW - electrolytes

KW - ionic conductivity

KW - synthesis

U2 - 10.1149/2.06011701jes

DO - 10.1149/2.06011701jes

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VL - 164

SP - A6395-A6400

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 1

ER -

Synthesis and ionic conductivity studies of In- and Y-doped Li6Hf2O7 as solid-state electrolyte for all-solid state Li-ion batteries

Abstract

Keywords

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Design and high throughput microwave synthesis of Li-ion battery materials

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