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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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Guo, J., Stroe, D. I., Adelhelm, P. & Ravnsbæk, D. (2025). Pulse Current Charging for Lithium-Ion Batteries and Beyond. 1. Abstract from 248th ECS Meeting 2025.
Bösenberg, U., Bomholdt Ravnsbæk, D., Hagemann, H., D'Anna, V., Minella, C. B., Pistidda, C., van Beek, W., Jensen, T. R., Bormann, R. & Dornheim, M. (2010). Pressure and Temperature Influence on the Desorption Pathway of the LiBH4-MgH2 Composite System. Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, 114(35), 15212-15217.
Ravnsbæk, D., Filinchuk, Y., Cerny, R. & Jensen, T. R. (2010). Powder diffraction methods for studies of borohydride-based energy storage materials. Zeitschrift für Kristallographie - Crystalline Materials, 255, 557-569. https://doi.org/10.1524/zkri.2010.1357
Cerny, R., Bomholdt Ravnsbæk, D., Schouwink, P., Filinchuk, Y., Penin, N., Teyssier, J., Smrcok, L. & Jensen, T. R. (2012). Potassium Zinc Borohydrides Containing Triangular [Zn(BH4)3]- and Tetrahedral [Zn(BH4)xCl4-x]2- Anions. The Journal of Physical Chemistry Part C, 116, 1563–1571. https://doi.org/10.1021/jp209848r
Jakobsen, C. L., Skovgaard Nielsen, K., Morgen, P., Bøjesen, E. D. & Bomholdt Ravnsbæk, D. (2021). Polymorphic Purity and Structural Charge–Discharge Evolution of β-LiVOPO4 Cathodes. The Journal of Physical Chemistry Part C, 125(44), 24301-24309. https://doi.org/10.1021/acs.jpcc.1c05494