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Dorthe Ravnsbæk

Keywords

  • Materials Chemistry
  • Energy Materials
  • Batteries
  • Nano- and atomic-scale structure
  • Electrochemistry
  • in situ and operando methods

Head of the Ravnsbæk Group

Professor Dorthe Ravnsbæk
 

Developing functional materials for sustainable batteries

Research in the Ravnsbæk Group evolves around developing functional materials for sustainable batteries. Within this topic they investigate novel electrode materials for e.g. Li-, Na- and Mg-ion batteries with activities spanning from synthesis over materials characterization to battery fabrication and electrochemical analysis. Furthermore, they are involved in a series of effort exploring methods to stabilize the electrode and the electrodes under high-potential or high mechanical strain conditions.

The focus of the Ravnsbæk Group lies especially on understanding structure property relations of battery materials, that is, how does the electrochemical properties and the battery performance correlate with the nano- and atomic-scale structure of the functional components. To elucidate this they utilize a range of X-ray and neutron based techniques, e.g. X-ray scattering, to probe the structural changes as they occur inside the operating battery during charge and discharge.


Recent publications

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Ravnsbæk, D. B., Nickels, E. A., Černý, R., Olesen, C. H., David, W. I. F., Edwards, P. P., Filinchuk, Y. & Jensen, T. R. (2013). Novel Alkali Earth Borohydride Sr(BH4)2 and Borohydride-Chloride Sr(BH4)Cl. Inorganic Chemistry, 52(19), 10877-10885. https://doi.org/10.1021/ic400862s
Gradišek, A., Bomholdt Ravnsbæk, D., Vrtnik, S., Kocjan, A., Lužnik, J., Apih, T., Jensen, T. R., Skripov, A. V. & Dolinšek, J. (2013). NMR Study of Molecular Dynamics in Complex Metal Borohydride LiZn2(BH4)5. The Journal of Physical Chemistry Part C, 117(41), 21139-21147. https://doi.org/10.1021/jp407620r
Thatcher, Z., Liu, C. H., Yang, L., McBride, B. C., Thinh Tran, G., Wustrow, A., Karlsen, M. A., Neilson, J. R., Ravnsbæk, D. B. & Billinge, S. J. L. (2022). nmfMapping: a cloud-based web application for non-negative matrix factorization of powder diffraction and pair distribution function datasets. Acta Crystallographica Section A: Foundations and Advances, 78, 242-248. https://doi.org/10.1107/S2053273322002522
Ravnsbæk, D., Jensen, T. R. & Skibsted, J. (2009). New Tetrahydridoborates for Hydrogen Storage. Poster session presented at the 5th Annual Inano Meeting, Århus, Denmark.