Senyshyn, Anatoliy ; Mühlbauer, M. J. ; Dolotko, O. ; Hofmann, M. ; Pirling, Thilo ; Ehrenberg, Helmut (2014)
Spatially resolved in operando neutron scattering studies on Li-ion batteries.
In: Journal of Power Sources, 245
doi: 10.1016/j.jpowsour.2013.06.158
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Spatially-resolved neutron diffraction has been applied to probe the lithium distribution in radial direction of a commercial Li-ion cell of 18650-type. The spatial evolution of selected Bragg reflections for LiCoO2 (positive electrode, “cathode”) and graphite and lithium intercalated graphite (negative electrode, “anode”) was observed and evaluated by taking beam attenuation and cell geometry effects into account. No evidences for lithium inhomogeneities have been found for the investigated set of cells. Computed neutron tomography using a monochromatic neutron beam confirmed the homogeneous lithium distribution. The relevance of the monochromatic beam to neutron imaging studies of Li-ion cells is discussed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Senyshyn, Anatoliy ; Mühlbauer, M. J. ; Dolotko, O. ; Hofmann, M. ; Pirling, Thilo ; Ehrenberg, Helmut |
| Art des Eintrags: | Bibliographie |
| Titel: | Spatially resolved in operando neutron scattering studies on Li-ion batteries |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Januar 2014 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Power Sources |
| Jahrgang/Volume einer Zeitschrift: | 245 |
| DOI: | 10.1016/j.jpowsour.2013.06.158 |
| Kurzbeschreibung (Abstract): | Spatially-resolved neutron diffraction has been applied to probe the lithium distribution in radial direction of a commercial Li-ion cell of 18650-type. The spatial evolution of selected Bragg reflections for LiCoO2 (positive electrode, “cathode”) and graphite and lithium intercalated graphite (negative electrode, “anode”) was observed and evaluated by taking beam attenuation and cell geometry effects into account. No evidences for lithium inhomogeneities have been found for the investigated set of cells. Computed neutron tomography using a monochromatic neutron beam confirmed the homogeneous lithium distribution. The relevance of the monochromatic beam to neutron imaging studies of Li-ion cells is discussed. |
| Freie Schlagworte: | Li-ion battery; In operando studies; Fatigue effect; Spatial lithium distribution; Neutron powder diffraction; Neutron radiography and tomography |
| Zusätzliche Informationen: | SFB 595 T2 |
| Fachbereich(e)/-gebiet(e): | Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > T - Transferprojekte DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > T - Transferprojekte > Teilprojekt T1: „in operando“ Untersuchungen der Materialermüdung in kommerziellen Batterie-Typen durch Neutronentomographie und –diffraktion DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 28 Apr 2014 09:47 |
| Letzte Änderung: | 25 Aug 2014 08:27 |
| PPN: | |
| Sponsoren: | This work was supported by Deutsche Forschungsgemeinschaft (Research Collaborative Centre 595 “Electrical Fatigue in Functional Materials”). |
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