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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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Sørensen, D. R., Johannesen, P., Christensen, C. K. & Ravnsbæk, D. B. (2016). Intercalation of Mg-ions in layered V2O5 cathode materials for rechargeable Mg-ion batteries. Poster session presented at 1st International Symposium on Magnesium Batteries, 89143 Blaubeuren, Germany.
Sørensen, D. R., Drejer, A. Ø., Karlsen, M. A., Nielsen, U. G., Heere, M., Senyshyn, A. & Ravnsbæk, D. B. (2020). The Effect of oxygen defects on the structural evolution of LiVPO4F1−yoy cathode materials. ACS Applied Energy Materials, 3(10), 9750-9759. https://doi.org/10.1021/acsaem.0c01348
Sørensen, D. R., Drejer, A. Ø., Heere, M., Senyshyn, A., Frontzek, M., Hansen, T., Didier, C., Peterson, V. K., Bomholdt Ravnsbæk, D. & Jørgensen, M. R. V. (2022). An Easy-to-Use Custom-Built Cell for Neutron Powder Diffraction Studies of Rechargeable Batteries. Chemistry-Methods, 2(10), Article e202200046. https://doi.org/10.1002/cmtd.202200046
Sørensen, S. S., Christensen, A. K. R., Bouros-Bandrabur, E. A., Andersen, E. S., Christiansen, H. F., Lang, S., Cao, F., Jalaludeen, M. F. U., Christensen, J. F. S., Winters, W. M. W., Andersen, B. P., Nielsen, A. B., Nielsen, N. C., Bomholdt Ravnsbæk, D., Kristensen, P. K., Yue, Y. & Smedskjær, M. M. (2024). Water Promotes Melting of a Metal-Organic Framework. Chemistry of Materials, 36(6), 2756-2766. https://doi.org/10.1021/acs.chemmater.3c02873