Abdel El Kharbachi is a senior scientist at Helmholtz Institute Ulm (HIU), Germany. He graduated (Licence/DEA) from the University of Liège (Belgium) in RTILs non-aqueous electrochemistry and completed a Ph.D. research studies in Materials Science and Engineering from Grenoble Institute of Technology (France). He was a postdoctoral fellow in France at both the CEA-Saclay (for ITER Tokamak) and CNRS-Amiens (Lab Réactivité et Chimie des Solides), from which he gained research independence and extensive experience in energy materials synthesis, characterization, and the understanding of relevant structure-property relationships. From 2015 to 2018, he worked at IFE-Norway as a researcher and project leader for battery-related activities based on (boro) hydrides.  In 2021, he received a Grant for the Program of Excellent Junior Researchers by the Sino-German Center for Research Promotion.

Ika Dewi Wijayanti is an accomplished researcher and educator in the field of metal hydride batteries, electrospinning technology, and material characterization. With a Philosophy of Doctor degree from NTNU University, Norway, she holds the position of Assistant Professor at Institut Teknologi Sepuluh Nopember, Department of Mechanical Engineering. Her contributions span metal hydride battery and electrospinning technology research, encompassing experimental investigations. She actively imparts knowledge through teaching various courses and leads research projects focused on metal hydride battery and renewable energy systems.

Putu Suwarta is an accomplished researcher and educator in the field of composite materials, fracture mechanics, material characterizations, and multifunctional materials. He obtained a Philosophy of Doctor degree from the University of Bristol in the pseudo-ductile behavior of the unidirectional composite research field. He actively imparts knowledge through teaching various courses and leads research projects focused on multifunctional composite materials and fracture mechanics. He also holds the role of visiting associate researcher at Bristol Composite Institute, one of the research institutes at the University of Bristol from 2020 to 2025. With extensive collaborations with industry and academic partners, numerous scientific publications, and important editorial and reviewer roles, he is a respected figure in advancing the field of multifunctional composite material.

Ivan Tolj graduated from the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture (FESB) at the University of Split (Croatia) in 2005. He began his career at the same faculty in 2006 as a research/teaching assistant, working on a project financed by the Ministry of Science, Education, and Sports of the Republic of Croatia. The project, titled "Passive Fuel Cells to Supply Oxygen from the Air by Natural Convection," aimed to explore fuel cell technology. His contributions spanned both the modeling and experimental aspects of fuel cell research and development. Currently, he holds the position of Associate Professor at FESB in the Department of Thermodynamics. His current research revolves around hydrogen technologies, encompassing areas such as fuel cells, hydrogen production, storage and compression, fuel cell hybrid system energy management and control, and more.