Chen, Ruiyong ; Knapp, Michael ; Yavuz, Murat ; Ren, Shuhua ; Witte, Ralf ; Heinzmann, Ralf ; Hahn, Horst ; Ehrenberg, Helmut ; Indris, Sylvio (2015)
Nanoscale spinel LiFeTiO4for intercalation pseudocapacitive Li+storage.
In: Phys. Chem. Chem. Phys., 17 (2)
doi: 10.1039/c4cp04655b
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Intercalation pseudocapacitive Li+ storage has been recognized recently in metal oxide materials, wherein Li+ intercalation into the lattice is not solid-state diffusion-limited. This may bridge the performance gap between electrochemical capacitors and battery materials. To date, only a few materials with desired crystal structure and with well-defined nanoarchitectures have been found to exhibit such attractive behaviour. Herein, we report for the first time that nanoscale spinel LiFeTiO4 as a cathode material for Li-ion batteries exhibits intercalation pseudocapacitive Li+ storage behaviour. Nanoscale LiFeTiO4 nanoparticles with native carbon coating were synthesized by a sol-gel route. A fast and large-amount of Li+ storage (up to 1.6 Li+ per formula unit over cycling) in the nanoscale LiFeTiO4 host has been achieved without compromising kinetics.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Chen, Ruiyong ; Knapp, Michael ; Yavuz, Murat ; Ren, Shuhua ; Witte, Ralf ; Heinzmann, Ralf ; Hahn, Horst ; Ehrenberg, Helmut ; Indris, Sylvio |
| Art des Eintrags: | Bibliographie |
| Titel: | Nanoscale spinel LiFeTiO4for intercalation pseudocapacitive Li+storage |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Verlag: | The Royal Society of Chemistry |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Phys. Chem. Chem. Phys. |
| Jahrgang/Volume einer Zeitschrift: | 17 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1039/c4cp04655b |
| Kurzbeschreibung (Abstract): | Intercalation pseudocapacitive Li+ storage has been recognized recently in metal oxide materials, wherein Li+ intercalation into the lattice is not solid-state diffusion-limited. This may bridge the performance gap between electrochemical capacitors and battery materials. To date, only a few materials with desired crystal structure and with well-defined nanoarchitectures have been found to exhibit such attractive behaviour. Herein, we report for the first time that nanoscale spinel LiFeTiO4 as a cathode material for Li-ion batteries exhibits intercalation pseudocapacitive Li+ storage behaviour. Nanoscale LiFeTiO4 nanoparticles with native carbon coating were synthesized by a sol-gel route. A fast and large-amount of Li+ storage (up to 1.6 Li+ per formula unit over cycling) in the nanoscale LiFeTiO4 host has been achieved without compromising kinetics. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 23 Feb 2016 12:16 |
| Letzte Änderung: | 23 Feb 2016 12:16 |
| PPN: | |
| Sponsoren: | This work was financially supported by the BMBF and the "Helmholtz Initiative for Mobile/Stationary Energy Storage Systems''. |
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