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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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Gao, C., Jiang, Z., Qi, S., Wang, P., Jensen, L. R., Johansen, M., Christensen, C. K., Zhang, Y., Ravnsbæk, D. B. & Yue, Y. (2022). Metal-Organic Framework Glass Anode with an Exceptional Cycling-Induced Capacity Enhancement for Lithium-Ion Batteries. Advanced Materials, 34(10), Article 2110048. https://doi.org/10.1002/adma.202110048
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
Boesenberg, U., Henriksen, C., Rasmussen, K. L., Chiang, Y.-M., Garrevoet, J. & Bomholdt Ravnsbæk, D. (2022). State of LiFePO4 Li-Ion Battery Electrodes after 6533 Deep-Discharge Cycles Characterized by Combined Micro-XRF and Micro-XRD. ACS Applied Energy Materials, 5(4), 4358-4368. https://doi.org/10.1021/acsaem.1c03966
Ozer, B., Karlsen, M. A., Thatcher, Z., Lan, L., McMahon, B., Strickland, P. R., Westrip, S. P., Sang, K. S., Billing, D. G., Ravnsbaek, D. B. & Billinge, S. J. L. (2022). Towards a machine-readable literature: finding relevant papers based on an uploaded powder diffraction pattern. Acta Crystallographica Section A: Foundations and Advances, A78(Part 5), 386-394. https://doi.org/10.1107/S2053273322007483