Baehtz, Carsten ; Buhrmester, Thorsten ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Ehrenberg, Helmut (2005)
Design and performance of an electrochemical in-situ cell for high resolution full-pattern X-ray powder diffraction.
In: Solid State Ionics, 176 (17-18)
Article
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.
| Item Type: | Article |
|---|---|
| Erschienen: | 2005 |
| Creators: | Baehtz, Carsten ; Buhrmester, Thorsten ; Bramnik, Natalia N. ; Nikolowski, Kristian ; Ehrenberg, Helmut |
| Type of entry: | Bibliographie |
| Title: | Design and performance of an electrochemical in-situ cell for high resolution full-pattern X-ray powder diffraction |
| Language: | English |
| Date: | May 2005 |
| Journal or Publication Title: | Solid State Ionics |
| Volume of the journal: | 176 |
| Issue Number: | 17-18 |
| URL / URN: | http://dx.doi.org/10.1016/j.ssi.2005.03.021 |
| 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. |
| Uncontrolled Keywords: | LiMn2O4; Rechargable batteries; Battery materials; Electrode materials; Electrochemical in-situ sell; Synchrotron powder diffraction |
| Identification Number: | doi:10.1016/j.ssi.2005.03.021 |
| Additional Information: | SFB 595 B4 |
| Divisions: | 11 Department of Materials and Earth Sciences DFG-Collaborative Research Centres (incl. Transregio) DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres Zentrale Einrichtungen DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B4: In situ investigations of the degradation of intercalation batteries and their modelling |
| Date Deposited: | 15 Aug 2011 11:00 |
| Last Modified: | 21 Mar 2019 07:08 |
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