Dorthe became Professor in Materials Chemistry at Department of Chemistry & iMAT at Aarhus University in November 2021. Here, she leads the research group focusing on synthesis and structural characterization of electrode materials for rechargeable batteries. She holds a PhD degree in Nanotechnology from Aarhus University from 2011. Her PhD work focused on crystal chemistry of novel materials for hydrogen storage. Following her PhD, she worked two years at MIT at Department of Material Science and Engineering as post doctoral researcher within the group of Prof. Yet-Ming Chiang. Here she began working in the field of rechargeable batteries with primary focus on operando X-ray scattering studies. After her time at MIT, she became Assisting (2015) and Associate (2016) professor in Inorganic Chemistry at University of Southern Denmark.
Post doctoral fellows
Ilham Bezza
Ilham did her bachelor’s and master’s studies at Marrakech University, MOROCCO. Her PhD thesis was shared between Marrakech University and Karlsruhe Institute of Technology (KIT), GERMANY and was mainly focused on the synthesis of electrode materials; for Li-ion batteries; and there structural and electrochemical characterization. Afterwards she did a postdoc at Tours University in FRANCE about synthesis and development of electrode materials for Li- and Na-ion batteries. Currently, her work as a postdoc at Aarhus University focuses on implementing a correlation between zwitterions which are used as electrolyte additive binder and electrode coating, and the electrochemical performance of Li-ion battery.
Mewin Vincent
Mewin Vincent earned his bachelor’s and master’s degrees from the University of Calicut, India. He pursued his PhD jointly at the Autonomous University of Madrid and the IMDEA Institute of Materials, Spain, focusing on developing and improving Mg and Mg-Li/Na hybrid batteries. Following his PhD, he conducted postdoctoral research at the University of Warsaw, Poland, where he delved into the development and understanding of Alkaline-air batteries. Currently, he is a postdoctoral researcher at Aarhus University, investigating self-cooling electrode materials for fast-charging batteries.
PhD students
Bettina Pilgaard Andersen
Bettina investigates disorder in electrode materials on the atomic scale. She is particular interested in understanding the very local structure and from this build knowledge on how this couples to longer length scales and electrochemical properties. In her work she especially utilizes total scattering and electron microscopy.
Rebekka Klemmt
Rebekka is working on the development of advanced methodologies to investigate the atomic structure of disordered materials. The work is in cooperation with Espen Draht Bøjesen from the Interdisciplinary Nanoscience center, Aarhus. Thereby, she is combing results from x-ray diffraction experiments, mainly pair distribution function analysis, with results obtained from angular correlation analysis of scanning nanobeam electron diffraction patterns.
Marie Uth
Marie is an industrial Ph.D. student employed at Danish Graphene ApS and is supervised from the university side by Prof. Dorthe B. Ravnsbæk, Prof. Kim Daasbjerg, and Assoc. Prof. Steen Uttrup Pedersen. Marie investigates functionalized graphene materials as additives for lithium ion batteries, and their effect on electrode stability, capacity, resistance, and surface interactions.
Krestine Hofstedt Rasmussen
Krestine is an Industrial Ph.D. student employed at ROCKWOOL A/S. She is working on the structural characterization of stone wool fibers on multiple length scales. The work is in cooperation with Espen Drath Bøjesen from the Interdisciplinary Nanoscience Center, Aarhus University. In this project, Krestine will combine pair distribution function analysis from X-ray experiments with electron microscopy techniques, such as scanning electron nanobeam diffraction and electron energy loss spectroscopy, to investigate the compositional and structural make-up of stone wool fibers, and how this affects the fire stability of the fibers.
Maria Schou Hansen
Maria is working on the development of sustainable sodium transition metal oxides. She is particularly interested in the phase transitions that occur during the cycling of the batteries and how these transitions affect the electrochemical performance. In her work she especially uses electrochemical measurements and X-ray diffraction.
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Signe Schiøtt Brummerstedt
Signe did her bachelors in Ravnsbæk Group, where she investigated how metal substitution affected the properties of sodium transition metal oxides. During her master’s she did an exchange at University of Western Australia, where she learned methods in synthesis and analysis of single crystals. For her PhD she is combining the two as she investigates disorder and phase changes in battery materials during cycling using single crystal scattering experiments. This involves both the synthesis of single crystal battery materials, structural investigations using X-Ray scattering and electrochemical measurements.
Project Students
Johanne Linderoth
Johanne is doing a chemical project in the group, looking into Lithium disordered rocksalts, as cathode materials.
Scientific Staff
Josephine Dunker
Josephine is a scientific assistant in the group, she is therefore involved in practical work including maintaining this website while also helping out with scientific work. Josephine finished her masters in the Ravnsbæk group on layered cathode materials in Sodium-ion batteries.
Ilham Bezza
ravnsbaekgroup.com 