期刊
CERAMICS INTERNATIONAL
卷 41, 期 10, 页码 13147-13152出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.07.084
关键词
Solid-state lithium-ion conductors; Soft lithography; Micro-molding; Sol-gel chemistry
资金
- Dutch Technology Foundation STW [07796]
The combination of sol gel processing and soft-lithographic patterning presents a promising route towards three-dimensional (3D) micro Li-ion electrodes, and may offer a viable approach for the fabrication of all-solid-state 3D Li-ion batteries. The methods are relatively simple and therefore cheap and moreover easy to scale up. In this paper, micro-patterned films of the Li-ion conducting perovskite-type phase with nominal composition Li0.29La0.57TiO3 (LLT) were prepared on silicon, using sol-gel synthesis in combination with micro-molding. After thermal annealing at 700 degrees C, the phase formation, morphology, chemical composition and LLT film thickness were investigated by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Analysis of X-rays (EDAX) and Atomic Force Microscopy (AFM). The ionic conductivity of the LLT powder prepared during this study, determined by impedance spectroscopy, was 2.68. 10(-6) S/cm at 25 degrees C. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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