Electrochemical properties of spinel Li4Ti5O12 nanoparticles prepared via a low-temperature solid route

Mamoru Senna, Martin Fabián, Ladislav Kavan, Markéta Zukalová, Jaroslav Briančin, Erika Turianicová, Patrick Bottke, Martin Wilkening, Vladimír Šepelák

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Spinel phase Li4Ti5O12 (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 TiO2 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 6Li 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.

Original languageEnglish
Pages (from-to)2673-2683
Number of pages11
JournalJournal of solid state electrochemistry
Volume20
Issue number10
DOIs
Publication statusPublished - 1 Oct 2016

Fingerprint

Electrochemical properties
spinel
routes
Nanoparticles
nanoparticles
Ball milling
Specific surface area
Calcination
solid state
Particle size
Nuclear magnetic resonance
Impurities
X ray diffraction
roasting
Temperature
charging
balls
acetates
Acetates
atmospheres

Keywords

  • Cyclic voltammetry
  • Impurity phases
  • Li-ion battery anode
  • LiTiO
  • Reactive precursor

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Senna, M., Fabián, M., Kavan, L., Zukalová, M., Briančin, J., Turianicová, E., ... Šepelák, V. (2016). Electrochemical properties of spinel Li4Ti5O12 nanoparticles prepared via a low-temperature solid route. Journal of solid state electrochemistry, 20(10), 2673-2683. https://doi.org/10.1007/s10008-016-3272-x

Electrochemical properties of spinel Li4Ti5O12 nanoparticles prepared via a low-temperature solid route. / Senna, Mamoru; Fabián, Martin; Kavan, Ladislav; Zukalová, Markéta; Briančin, Jaroslav; Turianicová, Erika; Bottke, Patrick; Wilkening, Martin; Šepelák, Vladimír.

In: Journal of solid state electrochemistry, Vol. 20, No. 10, 01.10.2016, p. 2673-2683.

Research output: Contribution to journalArticleResearchpeer-review

Senna, M, Fabián, M, Kavan, L, Zukalová, M, Briančin, J, Turianicová, E, Bottke, P, Wilkening, M & Šepelák, V 2016, 'Electrochemical properties of spinel Li4Ti5O12 nanoparticles prepared via a low-temperature solid route' Journal of solid state electrochemistry, vol. 20, no. 10, pp. 2673-2683. https://doi.org/10.1007/s10008-016-3272-x
Senna, Mamoru ; Fabián, Martin ; Kavan, Ladislav ; Zukalová, Markéta ; Briančin, Jaroslav ; Turianicová, Erika ; Bottke, Patrick ; Wilkening, Martin ; Šepelák, Vladimír. / Electrochemical properties of spinel Li4Ti5O12 nanoparticles prepared via a low-temperature solid route. In: Journal of solid state electrochemistry. 2016 ; Vol. 20, No. 10. pp. 2673-2683.
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