Microstructural evolution of solution-processed Li-Ge-Ga-S chalcogenide powders for Li+ ion battery applications
- Title
- Microstructural evolution of solution-processed Li-Ge-Ga-S chalcogenide powders for Li+ ion battery applications
- Author
- 신동욱
- Keywords
- Li+ ion battery; Solid electrolyte; Amorphous chalcogenide; Solution process
- Issue Date
- 2016-01
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- JOURNAL OF NON-CRYSTALLINE SOLIDS, v. 431, NO Special SI, Page. 57-60
- Abstract
- Sulfur-based chalcogenide Li-Ge-Ga-S powders for use in solid electrolyte of Li+ ion batteries have been successfully synthesized via a low-temperature solution-based process. Their Li+ ion conductivity turns out to be similar to 7 x 10(-4) S/cm at room temperature which is quite comparable with that of melt-quenched or mechanically-alloyed analogues. It is revealed that their microstructure becomes amorphized appropriately at a specific Ga/Ge ratio where the ionic conductivity is maximized. A structural model is proposed, which emphasizes correlations between gallium and lithium inside the amorphous structures. (C) 2015 Elsevier B.V. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S0022309315001635?via%3Dihubhttp://hdl.handle.net/20.500.11754/31452
- ISSN
- 0022-3093; 1873-4812
- DOI
- 10.1016/j.jnoncrysol.2015.04.009
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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