Electrochemical stability and ionic conductivity of solid electrolytes based on Li10GeP2S12-xAx (A=O, Se. x=0, 0.2, 0.4, 0.6, 0.8, 1)

Shipai SONG; Zongkai YAN; Fang WU; Xiaokun ZHANG; Yong XIANG

doi:10.1088/1755-1315/461/1/012074

Electrochemical stability and ionic conductivity of solid electrolytes based on Li₁₀GeP₂S_12-xA_x (A=O, Se. x=0, 0.2, 0.4, 0.6, 0.8, 1)

Shipai SONG, Zongkai YAN, Fang WU, Xiaokun ZHANG, Yong XIANG^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

1 Citation (Scopus)

Abstract

The compositions Li₁₀GeP₂S_12-xA_x (A = O, Se) solid electrolytes were synthesized. As x inreases, the ionic conductivity of the Li₁₀GeP₂S_12-xO_x samples decreases from 2.8 mS/cm to 1.09 mS/cm. Li₁₀GeP₂S_11.8Se_0.2 has the highest ionic conductivity, 3.43 mS/cm, and the activation energy of 0.143 eV. The electrochemical stability is Li₁₀GeP₂S_11.6O_0.4 > Li₁₀GeP₂S₁₂ > Li₁₀GeP₂S_11.8Se_0.2, and the electrochemical window of Li₁₀GeP₂S_11.6O_0.4 is about 1.40 - 3.00 V. The difference in electrochemical properties of Li₁₀GeP₂S_12-xA_x (A = O, Se) can be used as a way to improve the interface of Li₁₀GeP₂S₁₂-type solid batteries.

Original language	English
Article number	012074
Number of pages	8
Journal	IOP Conference Series: Earth and Environmental Science
Volume	461
Issue number	1
DOIs	https://doi.org/10.1088/1755-1315/461/1/012074
Publication status	E-pub ahead of print - 23 Apr 2020
Externally published	Yes
Event	2019 5th International Conference on Energy Equipment Science and Engineering, ICEESE 2019 - Harbin, China Duration: 29 Nov 2019 → 1 Dec 2019

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

Funding

X.Z. acknowledges support from the National Science Funds of China (Grant No. 21905040) and the startup funds from the University of Electronic Science and Technology of China. This work is partly supported by the National Key Research and Development Program of China (2017YFB0702802).

Access to Document

10.1088/1755-1315/461/1/012074Licence: CC BY

Cite this

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title = "Electrochemical stability and ionic conductivity of solid electrolytes based on Li10GeP2S12-xAx (A=O, Se. x=0, 0.2, 0.4, 0.6, 0.8, 1)",

abstract = "The compositions Li10GeP2S12-xAx (A = O, Se) solid electrolytes were synthesized. As x inreases, the ionic conductivity of the Li10GeP2S12-xOx samples decreases from 2.8 mS/cm to 1.09 mS/cm. Li10GeP2S11.8Se0.2 has the highest ionic conductivity, 3.43 mS/cm, and the activation energy of 0.143 eV. The electrochemical stability is Li10GeP2S11.6O0.4 > Li10GeP2S12 > Li10GeP2S11.8Se0.2, and the electrochemical window of Li10GeP2S11.6O0.4 is about 1.40 - 3.00 V. The difference in electrochemical properties of Li10GeP2S12-xAx (A = O, Se) can be used as a way to improve the interface of Li10GeP2S12-type solid batteries.",

author = "Shipai SONG and Zongkai YAN and Fang WU and Xiaokun ZHANG and Yong XIANG",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 2019 5th International Conference on Energy Equipment Science and Engineering, ICEESE 2019 ; Conference date: 29-11-2019 Through 01-12-2019",

year = "2020",

month = apr,

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doi = "10.1088/1755-1315/461/1/012074",

language = "English",

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journal = "IOP Conference Series: Earth and Environmental Science",

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TY - JOUR

T1 - Electrochemical stability and ionic conductivity of solid electrolytes based on Li10GeP2S12-xAx (A=O, Se. x=0, 0.2, 0.4, 0.6, 0.8, 1)

AU - SONG, Shipai

AU - YAN, Zongkai

AU - WU, Fang

AU - ZHANG, Xiaokun

AU - XIANG, Yong

PY - 2020/4/23

Y1 - 2020/4/23

N2 - The compositions Li10GeP2S12-xAx (A = O, Se) solid electrolytes were synthesized. As x inreases, the ionic conductivity of the Li10GeP2S12-xOx samples decreases from 2.8 mS/cm to 1.09 mS/cm. Li10GeP2S11.8Se0.2 has the highest ionic conductivity, 3.43 mS/cm, and the activation energy of 0.143 eV. The electrochemical stability is Li10GeP2S11.6O0.4 > Li10GeP2S12 > Li10GeP2S11.8Se0.2, and the electrochemical window of Li10GeP2S11.6O0.4 is about 1.40 - 3.00 V. The difference in electrochemical properties of Li10GeP2S12-xAx (A = O, Se) can be used as a way to improve the interface of Li10GeP2S12-type solid batteries.

AB - The compositions Li10GeP2S12-xAx (A = O, Se) solid electrolytes were synthesized. As x inreases, the ionic conductivity of the Li10GeP2S12-xOx samples decreases from 2.8 mS/cm to 1.09 mS/cm. Li10GeP2S11.8Se0.2 has the highest ionic conductivity, 3.43 mS/cm, and the activation energy of 0.143 eV. The electrochemical stability is Li10GeP2S11.6O0.4 > Li10GeP2S12 > Li10GeP2S11.8Se0.2, and the electrochemical window of Li10GeP2S11.6O0.4 is about 1.40 - 3.00 V. The difference in electrochemical properties of Li10GeP2S12-xAx (A = O, Se) can be used as a way to improve the interface of Li10GeP2S12-type solid batteries.

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JO - IOP Conference Series: Earth and Environmental Science

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