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Design and performance of an electrochemical in-situ cell for high resolution full-pattern X-ray powder diffraction

Baehtz, Carsten ; Buhrmester, Thorsten ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Ehrenberg, Helmut :
Design and performance of an electrochemical in-situ cell for high resolution full-pattern X-ray powder diffraction.
[Online-Edition: http://dx.doi.org/10.1016/j.ssi.2005.03.021]
In: Solid State Ionics, 176 (17-18) pp. 1647-1652. ISSN 01672738
[Artikel], (2005)
Note:

SFB 595 B4

Offizielle URL: http://dx.doi.org/10.1016/j.ssi.2005.03.021

Kurzbeschreibung (Abstract)

An electrochemical in-situ cell for diffraction studies of battery materials has been developed. The cell works in transmission geometry with sample rotation, and the performance was characterized by experiments on the cathode material LiMn2O4. Several charge and discharge cycles can be studied over a few days without any misfunction of the cell. The quality of the obtained data allows for full structure refinements by the Rietveld method. The whole set-up is about 1 mm thin and consists of an aluminum piston as cathode current collector with a thickness below 0.1 mm in direct contact with a pellet of active cathode material, carbon black and binder. The lithium anode is separated from the cathode by a glass-fibre, soaked with electrolyte. The very good time and angular resolution of this set-up reveals three distinct spinel phases for different charging states of LiMn2O4, prepared by subsolidus reaction.

Typ des Eintrags: Artikel
Erschienen: 2005
Autor(en): Baehtz, Carsten ; Buhrmester, Thorsten ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Ehrenberg, Helmut
Titel: Design and performance of an electrochemical in-situ cell for high resolution full-pattern X-ray powder diffraction
Sprache: Englisch
Kurzbeschreibung (Abstract):

An electrochemical in-situ cell for diffraction studies of battery materials has been developed. The cell works in transmission geometry with sample rotation, and the performance was characterized by experiments on the cathode material LiMn2O4. Several charge and discharge cycles can be studied over a few days without any misfunction of the cell. The quality of the obtained data allows for full structure refinements by the Rietveld method. The whole set-up is about 1 mm thin and consists of an aluminum piston as cathode current collector with a thickness below 0.1 mm in direct contact with a pellet of active cathode material, carbon black and binder. The lithium anode is separated from the cathode by a glass-fibre, soaked with electrolyte. The very good time and angular resolution of this set-up reveals three distinct spinel phases for different charging states of LiMn2O4, prepared by subsolidus reaction.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Solid State Ionics
Band: 176
(Heft-)Nummer: 17-18
Freie Schlagworte: LiMn2O4; Rechargable batteries; Battery materials; Electrode materials; Electrochemical in-situ sell; Synchrotron powder diffraction
Fachbereich(e)/-gebiet(e): Zentrale Einrichtungen > Sonderforschungsbereich 595 > B - Charakterisierung > B4
Zentrale Einrichtungen > Sonderforschungsbereich 595 > B - Charakterisierung
Zentrale Einrichtungen > Sonderforschungsbereich 595
Zentrale Einrichtungen
Hinterlegungsdatum: 15 Aug 2011 11:00
Offizielle URL: http://dx.doi.org/10.1016/j.ssi.2005.03.021
Zusätzliche Informationen:

SFB 595 B4

ID-Nummer: 10.1016/j.ssi.2005.03.021
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