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Title: | Amorphous and perovskite Li3xLa(2/3)-xTiO3 (thin) films via chemical solution deposition: solid electrolytes for all-solid-state Li-ion batteries | Authors: | VAN DEN HAM, Jonathan PEYS, Nick DE DOBBELAERE, Christopher D'HAEN, Jan Mattelaer, F. Detavenier, C. Notten, P. H. L. HARDY, An VAN BAEL, Marlies |
Issue Date: | 2015 | Source: | JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 73 (3), p. 536-543 | Abstract: | Thin films of amorphous and crystalline perovskite Li3xLa(2/3)−xTiO3 (LLT) (x = 0.117) are prepared by means of aqueous chemical solution deposition onto rutile TiO2 thin films as an anode, yielding an electrochemical half-cell. The Li-ion conductivity of the pin-hole free, amorphous LLT thin film (90 nm thick) is 3.8 × 10−8 S cm−1 on Pt and 1.3 × 10−8 S cm−1 on rutile TiO2, while measuring perpendicular to the thin film direction with impedance spectroscopy. Grazing angle attenuated total reflectance-Fourier transform infrared spectroscopy shows that all organic precursor molecules have been decomposed at 500 °C. In addition, in situ (heating) X-ray diffraction analysis shows that phase pure crystalline perovskite LLT (x = 0.117) is formed on top of the rutile TiO2 anode at 700 °C. Furthermore, thickness control is possible by varying the precursor solution concentration and the number of deposition cycles. The current study presents a promising synthesis route to develop all-solid-state battery devices based on multi-metal oxide materials using aqueous precursor chemistry. | Notes: | van den Ham, EJ (reprint author), Hasselt Univ, Inst Mat Res Inorgan & Phys Chem & IMEC, Div IMOMEC, Martelarenlaan 42, B-3500 Hasselt, Belgium. jonathan.vandenham@uhasselt.be | Keywords: | solid-electrolyte; thin films; aqueous; CSD; Li-ion conductivity; half-cell | Document URI: | http://hdl.handle.net/1942/18555 | ISSN: | 0928-0707 | e-ISSN: | 1573-4846 | DOI: | 10.1007/s10971-014-3511-5 | ISI #: | 000350684600005 | Rights: | © Springer Science+Business Media New York 2014 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2016 |
Appears in Collections: | Research publications |
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amorphous.pdf | Peer-reviewed author version | 1.07 MB | Adobe PDF | View/Open |
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