Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 114, Issue -, Pages 126-133Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2022.06.039
Keywords
Composite solid electrolyte; Ordered structures; Ionic conductivity; NASICON-type structures; Electrospinning
Funding
- Project of Guangxi Base and Talents [AD19110086]
- Foundation of Guilin University of Technology [GUTQDJJ2018024]
- Open Foundation Guangxi Key Laboratory of Optical and Electronic Materials and Devices [20KF-14]
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In this study, a stable spinning solution of LATP precursor was prepared using the sol-gel method, and a linear LATP solid electrolyte with an oriented ordered structure was obtained using improved electrostatic spinning equipment. The prepared LATP-PEO/LiClO4-PEG composite solid-state electrolyte with an ordered structure exhibited a high ionic conductivity at room temperature and showed excellent electrochemical stability.
The NASICON-type solid electrolyte structure of Li1.3Al0.3Ti1.7(PO4)(3) (LATP) exhibits good electrochemical performance and thermal stability, and has been promising as a solid electrolyte. Here, a stable good -stability LATP precursor spinning solution was prepared using the sol-gel method for the first time. A linear LATP solid electrolyte with an oriented ordered structure was obtained using improved electrostatic spinning equipment. The sintering process regime of the LATP-ordered construction was determined. The ionic conductivity of the prepared LATP-PEO/LiClO4-PEG composite solid-state electrolyte with an ordered structure was as high as 2.05 x 10-4 S.cm(-1) at room temperature (25 ?), one order of magnitude higher than the ionic conductivity of the LATP composite solid-state electrolyte reported so far. Organic solid-state electrolytes to protect LATP-ordered structured solid-state electrolytes yield excellent electro-chemical stability in lithium-metal batteries.(c) 2022 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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