Enhanced ionic conductivity of composite solid electrolyte by directionally ordered structures of linear Li1.3Al0.3Ti1.7(PO4)3

다국어 초록 (Multilingual Abstract)

The NASICON-type solid electrolyte structure of Li1.3Al0.3Ti1.7(PO4)3 (LATP) exhibits good electrochemicalperformance and thermal stability, and has been promising as a solid electrolyte. Here, a stable goodstabilityLATP precursor spinning solution was prepared using the sol–gel method for the first time. A linearLATP solid electrolyte with an oriented ordered structure was obtained using improved electrostaticspinning equipment. The sintering process regime of the LATP-ordered construction was determined. Theionic conductivity of the prepared LATP-PEO/LiClO4-PEG composite solid-state electrolyte with anordered structure was as high as 2.05 10-4 Scm1 at room temperature (25 C), one order of magnitudehigher than the ionic conductivity of the LATP composite solid-state electrolyte reported so far. Organicsolid-state electrolytes to protect LATP-ordered structured solid-state electrolytes yield excellent electrochemicalstability in lithium-metal batteries.

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