Dr. Mariya Kalapsazova has worked in the area of inorganic chemistry, especially the synthesis and electrochemical characterization of electrode materials for rechargeable alkaline-ion batteries for more than 10 years. In 2017 she defended her doctoral degree in the field of "Solid State Chemistry" at the Institute of General and Inorganic Chemistry – BAS. Mariya Kalapsazova has specializations in leading groups with competence in electrochemistry and energy systems in Spain and Germany during her PhD and as a postdoctoral researcher.