Bramnik, Natalia N. ; Bramnik, Kirill G. ; Baehtz, Carsten ; Ehrenberg, Helmut (2005)
Study of the effect of different synthesis routes on Li extraction–insertion from LiCoPO4.
In: Journal of Power Sources, 145 (1)
doi: 10.1016/j.jpowsour.2004.12.036
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The electrochemical performance of LiCoPO4-based electrodes was studied in dependence on synthetic conditions. The role of particle size distribution is illustrated. Structural changes occurring at lithium extraction–insertion were explored by ex situ and in situ synchrotron XRD measurements. For the samples annealed at temperature lower than 600 °C the amorphisation of the cathode material was identified. For a high-temperature sample the two-phase character of electrochemical reaction was confirmed. The character of structural changes observed at charge and discharge is different: the two-phase reaction LiCoPO4–“CoPO4” occurs during charging, while discharge induces a strong increase of the cell volume for the Li-poor phase.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | Bramnik, Natalia N. ; Bramnik, Kirill G. ; Baehtz, Carsten ; Ehrenberg, Helmut |
| Art des Eintrags: | Bibliographie |
| Titel: | Study of the effect of different synthesis routes on Li extraction–insertion from LiCoPO4 |
| Sprache: | Englisch |
| Publikationsjahr: | Juli 2005 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Power Sources |
| Jahrgang/Volume einer Zeitschrift: | 145 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1016/j.jpowsour.2004.12.036 |
| Kurzbeschreibung (Abstract): | The electrochemical performance of LiCoPO4-based electrodes was studied in dependence on synthetic conditions. The role of particle size distribution is illustrated. Structural changes occurring at lithium extraction–insertion were explored by ex situ and in situ synchrotron XRD measurements. For the samples annealed at temperature lower than 600 °C the amorphisation of the cathode material was identified. For a high-temperature sample the two-phase character of electrochemical reaction was confirmed. The character of structural changes observed at charge and discharge is different: the two-phase reaction LiCoPO4–“CoPO4” occurs during charging, while discharge induces a strong increase of the cell volume for the Li-poor phase. |
| Freie Schlagworte: | Phospho-olivine; Lithium batteries; In situ diffraction; Synchrotron |
| Zusätzliche Informationen: | SFB 595 B4 |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung > Teilprojekt B4: In situ Untersuchungen der Degradation von Interkalationsbatterien und deren Modellierung |
| Hinterlegungsdatum: | 15 Aug 2011 10:58 |
| Letzte Änderung: | 26 Aug 2018 21:26 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum