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Synchrotron Based Operando Methods for Characterization of Non-Aqueous Rechargeable Battery Electrode Materials

Sottmann, Jonas
Doctoral thesis
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PhD-Sottmann-2017.pdf (15.99Mb)
Year
2017
Permanent link
http://urn.nb.no/URN:NBN:no-58137

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  • Kjemisk institutt [843]
Abstract
Lithium-ion batteries (LIBs) are the power source of choice for portable devices and electric vehicles. The technology is increasingly used for large-scale stationary energy storage to balance supply and demand of intermittent renewable energy. Lithium and sodium have similar chemistries and sodium-ion batteries (SIBs) may provide cost advantages over LIBs. Huge research efforts are currently underway to develop suitable SIB materials.

Understanding working and degradation mechanisms of electrode materials at the atomic scale is fundamental to optimize battery materials. For this purpose a set-up that enables combined quasi-simultaneous operando X-ray diffraction and X-ray absorption spectroscopy coupled with electrochemical characterization was developed. A range of LIB and SIB electrode materials were studied with the emphasis on sodium negative electrode materials. Various material-related properties such as vacancy and water content, transition metal ordering, degree of amorphization, crystallite size and nanostructuring were found to affect the structural chemistry during cycling, which was put into context with the electrochemical properties of the battery system.
List of papers
I: Versatile electrochemical cell for Li-/Na-ion batteries and highthroughput setup for combined operando X-ray diffraction and absorption spectroscopy. J. Sottmann, R. Homs-Regojo, D. S. Wragg, H. Fjellvåg, S. Margadonna, H. Emerich. J. Appl. Crystallogr. 2016, 49, 1972-1981. The article is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1107/S160057671601428X
II: In operando Synchrotron XRD/XAS Investigation of Sodium Insertion into the Prussian Blue Analogue Cathode Material Na1.32Mn[Fe(CN)6]0.83 · z H2O. J. Sottmann, F. L. M. Bernal, K. V. Yusenko, M. Herrmann, H. Emerich, D. S. Wragg, and S. Margadonna. Electrochimica Acta 2016, 200, 305–313. The article is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1016/j.electacta.2016.03.131
III: How Crystallite Size Controls the Reaction Path in Nonaqueous Metal Ion Batteries: The Example of Sodium Bismuth Alloying. J. Sottmann, M. Herrmann, P. Vajeeston, Y. Hu, A. Ruud, C. Drathen, H. Emerich, H. Fjellvåg, and D. S. Wragg. Chem. Mater. 2016, 28, 2750-2756. The article is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1021/acs.chemmater.6b00491
IV: A new route to stable alloying anodes for sodium-ion batteries J. Sottmann, M. Herrmann, P. Vajeeston, A. Ruud, C. Drathen, H. Emerich, D. S. Wragg, and H. Fjellvåg. Manuscript. Published in: Chem. Mater., 2017, 29 (7), pp 2803–2810. The article is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1021/acs.chemmater.6b04699
V: In situ synchrotron study of ordered and disordered LiMn1.5Ni0.5O4 as lithium ion battery positive electrode P. B. Samarasingha, J. Sottmann, S. Margadonna, H. Emerich, O. Nilsen,H. Fjellvåg. Acta Materialia 2016, 116, 290-297. The article is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1016/j.actamat.2016.06.040
VI: Amorphous (Glassy) Carbon, a Promising Material for Sodium Ion Battery Anodes: a Combined First-Principles and Experimental Study. F. Legrain, J. Sottmann, K. Kotsis, S. Gorantla, S. Sartori, and S. Manzhos. J. Phys. Chem. C 2015, 119, 13496-13501. The article is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1021/acs.jpcc.5b03407
 
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