Flash sintering of Na3Zr2(SiO4)2(PO4) solid-state electrolyte at furnace temperature of 700 °C

Ke Ren; Yejie Cao; Yigao Chen; Gang Shao; Junhong Dai; Yiguang Wang

doi:10.1016/j.scriptamat.2020.06.055

Flash sintering of Na₃Zr₂(SiO₄)₂(PO₄) solid-state electrolyte at furnace temperature of 700 °C

Ke Ren, Yejie Cao, Yigao Chen, Gang Shao, Junhong Dai, Yiguang Wang^*

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

27 Citations (Scopus)

Abstract

Na₃Zr₂(SiO₄)₂(PO₄), a typical solid-state electrolyte material, was fabricated at 700°C within seconds by flash-sintering. Under a direct-current electric field, the sodium oxides deposited on the cathode side due to the electrochemical reactions and thereby resulting in impurities (Na₂ZrSi₂O₇ and m-ZrO₂) within the bulks. The pure Na₃Zr₂(SiO₄)₂(PO₄) bulks without the impurities could be sintered under alternative- current electric field, which exhibited comparable ion conductivity and activation energy to the reported data. This study demonstrated that flash-sintering can be used to synthesize and densify ceramics containing volatile composites. It may provide a new route to fabricate solid-state electrolytes in an efficient way.

Original language	English
Pages (from-to)	384-389
Number of pages	6
Journal	Scripta Materialia
Volume	187
DOIs	https://doi.org/10.1016/j.scriptamat.2020.06.055
Publication status	Published - Oct 2020

Keywords

Flash sintering
Impedance spectroscopy
Solid state reaction, NASICON
Solid-state electrolyte

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10.1016/j.scriptamat.2020.06.055

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title = "Flash sintering of Na3Zr2(SiO4)2(PO4) solid-state electrolyte at furnace temperature of 700 °C",

abstract = "Na3Zr2(SiO4)2(PO4), a typical solid-state electrolyte material, was fabricated at 700°C within seconds by flash-sintering. Under a direct-current electric field, the sodium oxides deposited on the cathode side due to the electrochemical reactions and thereby resulting in impurities (Na2ZrSi2O7 and m-ZrO2) within the bulks. The pure Na3Zr2(SiO4)2(PO4) bulks without the impurities could be sintered under alternative- current electric field, which exhibited comparable ion conductivity and activation energy to the reported data. This study demonstrated that flash-sintering can be used to synthesize and densify ceramics containing volatile composites. It may provide a new route to fabricate solid-state electrolytes in an efficient way.",

keywords = "Flash sintering, Impedance spectroscopy, Solid state reaction, NASICON, Solid-state electrolyte",

author = "Ke Ren and Yejie Cao and Yigao Chen and Gang Shao and Junhong Dai and Yiguang Wang",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = oct,

doi = "10.1016/j.scriptamat.2020.06.055",

language = "English",

volume = "187",

pages = "384--389",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Flash sintering of Na3Zr2(SiO4)2(PO4) solid-state electrolyte at furnace temperature of 700 °C

AU - Ren, Ke

AU - Cao, Yejie

AU - Chen, Yigao

AU - Shao, Gang

AU - Dai, Junhong

AU - Wang, Yiguang

PY - 2020/10

Y1 - 2020/10

N2 - Na3Zr2(SiO4)2(PO4), a typical solid-state electrolyte material, was fabricated at 700°C within seconds by flash-sintering. Under a direct-current electric field, the sodium oxides deposited on the cathode side due to the electrochemical reactions and thereby resulting in impurities (Na2ZrSi2O7 and m-ZrO2) within the bulks. The pure Na3Zr2(SiO4)2(PO4) bulks without the impurities could be sintered under alternative- current electric field, which exhibited comparable ion conductivity and activation energy to the reported data. This study demonstrated that flash-sintering can be used to synthesize and densify ceramics containing volatile composites. It may provide a new route to fabricate solid-state electrolytes in an efficient way.

AB - Na3Zr2(SiO4)2(PO4), a typical solid-state electrolyte material, was fabricated at 700°C within seconds by flash-sintering. Under a direct-current electric field, the sodium oxides deposited on the cathode side due to the electrochemical reactions and thereby resulting in impurities (Na2ZrSi2O7 and m-ZrO2) within the bulks. The pure Na3Zr2(SiO4)2(PO4) bulks without the impurities could be sintered under alternative- current electric field, which exhibited comparable ion conductivity and activation energy to the reported data. This study demonstrated that flash-sintering can be used to synthesize and densify ceramics containing volatile composites. It may provide a new route to fabricate solid-state electrolytes in an efficient way.

KW - Flash sintering

KW - Impedance spectroscopy

KW - Solid state reaction, NASICON

KW - Solid-state electrolyte

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DO - 10.1016/j.scriptamat.2020.06.055

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SN - 1359-6462

VL - 187

SP - 384

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JO - Scripta Materialia

JF - Scripta Materialia

ER -

Flash sintering of Na₃Zr₂(SiO₄)₂(PO₄) solid-state electrolyte at furnace temperature of 700 °C

Abstract

Keywords

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