Aarhus University Seal

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

Sort by: Date | Author | Title

Hansen, B. R. S., Skibsted, J., Jensen, T. R. & Ravnsbæk, D. (2013). Reversibility in LiBH4-MgH2-Al composite systems. Poster session presented at FCH JU Joint Meeting 2013, Santa Cruz, Spain.
Hansen, B. R. S., Jensen, T. R., Skibsted, J. & Bomholdt Ravnsbæk, D. (2012). Reversibility and Decomposition Reactions in the LiBH4-Al Composite System. Poster session presented at Danish Crystallographic Meeting and DanScatt Meeting, Odense, Denmark.
Babanova, O. A., Soloninin, A. V., Skripov, A. V., Bomholdt Ravnsbæk, D., Jensen, T. R. & Filinchuk, Y. (2011). Reorientational Motion in Alkali-Metal Borohydrides: NMR Data for RbBH4 and CsBH4 and Systematics of the Activation Energy Variations. Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, 115, 10305-10309. https://doi.org/10.1021/jp201735q
Henriksen, C., Mathiesen, J. K., Chiang, Y. M., Jensen, K. M. Ø. & Ravnsbæk, D. B. (2019). Reducing Transformation Strains during Na Intercalation in Olivine FePO4 Cathodes by Mn Substitution. ACS Applied Energy Materials, 2(11), 8060-8067. https://doi.org/10.1021/acsaem.9b01560
Payandeh GharibDoust, S., Heere, M., Brighi, M., Sørby, M. H., Cerny, R., Ravnsbæk, D. & Jensen, T. R. (2016). Rare earth bi- and trimetallic borohydrides for hydrogen storage. Poster session presented at iNANO annual meeting 2016, Aarhus, Denmark.