Electrochemical properties of spinel LiTiO nanoparticles prepared via a low-temperature solid route.
In: Journal of Solid State Electrochemistry, Jg. 20 (2016-10-01), Heft 10, S. 2673-2683
Online
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Zugriff:
Spinel phase LiTiO (s-LTO) with an average primary particle size of 150 nm was synthesised via a solid state route by calcining a precursor mixture at 600 °C. The precursor was prepared from a stoichiometric mixture of TiO nanoparticles and an ethanolic solution of Li acetate and activated by ball-milling. Effects of the calcination temperature and atmosphere are examined in relation to the coexistence of impurity phases by X-ray diffraction and Li MAS NMR. The charge capacity of s-LTO, determined from cyclic voltammogram at a scan rate of 0.1 mV/s, was 142 mAh/g. The capacity of our optimised material is superior to that of commercially available spinel (a-LTO), despite the considerably smaller BET-specific surface area of the former. The superior properties of our material were also demonstrated by galvanostatic charging/discharging. From these observations, we conclude that the presented low-temperature solid state synthesis route provides LTO with improved electrochemical performance. [ABSTRACT FROM AUTHOR]
Titel: |
Electrochemical properties of spinel LiTiO nanoparticles prepared via a low-temperature solid route.
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Autor/in / Beteiligte Person: | Senna, Mamoru ; Fabián, Martin ; Kavan, Ladislav ; Zukalová, Markéta ; Briančin, Jaroslav ; Turianicová, Erika ; Bottke, Patrick ; Wilkening, Martin ; Šepelák, Vladimír |
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Zeitschrift: | Journal of Solid State Electrochemistry, Jg. 20 (2016-10-01), Heft 10, S. 2673-2683 |
Veröffentlichung: | 2016 |
Medientyp: | academicJournal |
ISSN: | 1432-8488 (print) |
DOI: | 10.1007/s10008-016-3272-x |
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