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Kim, Youngsik
YK Research
Research Interests
  • Ionic conducting ceramic electrolyte membranes, energy conversion and storage materials and devices

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Characterization of thin-film electrolytes for all solid-state batteries

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Title
Characterization of thin-film electrolytes for all solid-state batteries
Author
Seo, InseokKim, YoungsikMartin, Steve W.
Issue Date
2016-03
Publisher
ELSEVIER SCIENCE SA
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.661, pp.245 - 250
Abstract
In this study, amorphous lithium thio-germanate thin-films were prepared as electrolytes for solid-state lithium rechargeable batteries by using RF sputtering deposition in an Ar atmospheres. High quality lithium germanium sulfide, nLi(2)S + GeS2(n = 1, 2, and 3) thin-films have been successfully made by RF sputtering and synthesized as solid-state electrolytes. Although these materials are unstable in air the thin-films were thoroughly characterized by X-ray diffraction (XRD), Scanning electron spectroscopy (SEM), Raman spectroscopy, Infrared spectroscopy (IR), and impedance spectroscopy using special setups to prevent contamination. The ionic conductivities of the thin-films are similar to 3 order magnitude higher than reported values for oxide thin-films. In this way, this work may provide a new way for developing new thin-film electrolytes for solid-state lithium ion batteries.
URI
https://scholarworks.unist.ac.kr/handle/201301/17993
URL
http://www.sciencedirect.com/science/article/pii/S0925838815315681
DOI
10.1016/j.jallcom.2015.11.012
ISSN
0925-8388
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