Dr. Mikkel Juelsholt
Research Interests
– Mechanochemical formation of battery materials
– Solid ion conductors
– Anionic redox materials
Educational background
Combined Masters degree (Nanoscience) and PhD degree (Chemistry)
2016 – 2021
University of Copenhagen, Department of Chemistry and Nanoscience Centre
Thesis title: „The Nanostructure and Nucleation Problems: Nanostructured Tungsten, Molybdenum and Niobium Oxides and How They Form“
Supervisor: Assoc. Prof. Kirsten M. Ø. Jensen
Bachelor’s degree
2013 – 2016
University of Copenhagen, Department of Chemistry and Nanoscience Centre
Thesis title: „Mechanisms for tungsten oxide nanoparticle formation in solvothermal synthesis: from polyoxometalates to crystalline materials“
Supervisor: Assoc. Prof. Kirsten M. Ø. Jensen
Working Experience
Post-doctoral research assistant
University of Oxford, UK
Department of Materials
PI: Prof. Sir Peter Bruce
Carlsberg Internationalization Fellowship
Columbia University, USA
Department of Chemical Engineering
PI: Assoc. Prof. Lauren Marbella
Awards & Achievements
Alexander von Humboldt Postdoc Fellowship
Alexander von Humboldt Stiftung
1st of November 2025 – 30th of October 2027
Title: „Peering into the ball mill to get out of the ball mill: Development of a scalable synthesis of highly fluorinated disordered rocksalt oxyfluorides“
Internationalisation Fellowship
The Carlsberg Foundation
1st of September 2023 – 31st of August 2025
HERCULES school best poster award
HERCULES school March 2020
ESRF and ILL, France
Poster title: „In situ studies of tungsten oxide formation“
Best presentation award
Danish Chemical Society, Inorganic Graduate Student Seminar
April 2018, University of Southern Denmark
Title: „Chemistry of nucleation: Mapping the hydrothermal formation of Tungsten oxide“
Publications
Full list of publications available here:
https://scholar.google.com/citations?user=TzIYcxEAAAAJ
Selected publications:
2025
M. Juelsholt, L. G. Graversen, L. Bhai, A. Svirinovsky-Arbeli, S. Park, T. DuBridge, S. Leiting, M. A. Karlsen, M. Etter, M. Lusardi, C. Weidenthaler and L. E. Marbella. In Situ X-ray Diffraction During Ball Milling Reveals Poorly Crystalline Metastable Intermediates During the Formation of Disordered Rocksalt Oxyfluorides. ChemRxiv. 2025
2025
M. Juelsholt,* B. T. Payne,* M. A. Pérez-Osoriod, D. L. R. Melvin, G. J. Cuelloe, E. Suarde, D. J. M. Irving, N. H. Rees, M. Feaviour, E. Petrucco, S. P. Day, G. J. Rees and P. G. Bruce. How Multi-length Scale Disorder Shapes Ion Transport in Lithium Argyrodites. Energy & Environmental Science, 2025, Advance Article *Equal contributions
2025
L. G. Graversen, M. Juelsholt, O. Aalling-Frederiksen, U. Friis-Jensen, R. K. Pittkowski, M. S. Thomsen, A. Kirsch, N. P. L. Magnard and K. M. Ø. Jensen, Chemical Science, 2025, 16, 14350–14365.
2025
P. J. Buitrago Botero, A. W. Ells, A. Svirinovsky-Arbeli, M. Juelsholt, and L. E. Marbella. Counterion Lewis Acidity Determines the Rate of Hexafluorophosphate Hydrolysis in Nonaqueous Battery Electrolytes. Journal of the American Chemical Society 2025 147 (11), 9159-9174.
2024
M. Juelsholt,* J. Chen,* M. A. Pérez-Osorio, G. J. Rees, S. De Sousa Coutinho, H. E. Maynard-Casely, J Liu, M. Everett, S Agrestini, M. Garcia-Fernandez, K. J. Zhou, R. House and P. G. Bruce. Does Trapped O2 Form in the Bulk of LiNiO2 during Charging? Energy & Environmental Science, 2024, 17, 2530-2540. *Equal contributions.