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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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Bomholdt Ravnsbæk, D. (2014). Coherent phase transformation in next-generation nanoscale olivine cathodes. Poster session presented at International Meeting on Lithium ion Batteries, Como, Italy.
Bomholdt Ravnsbæk, D. (2014). Electrochemically-Driven Phase Transitions in Battery Storage Compounds. Poster session presented at Basic Energy Science Meeting 2013, United States.
Ravnsbæk, D. B. (2014). Et indblik i batteriets atomare verden. In Carlsbergfondets Årsskrift 2014 (pp. 32-37). Carlsbergfondet. http://online.fliphtml5.com/xsvh/eaqy/#p=1
Bomholdt Ravnsbæk, D., Xiang, K., Xing, W., Borkiewicz, O. J., Wiaderek, K. M., Gionet, P., Chapman, K. W., Chupas, P. J. & Chiang, Y. M. (2014). Extended solid solutions and coherent transformations in nanoscale olivine cathodes. Nano Letters, 14(3), 1484-1491. https://doi.org/10.1021/nl404679t