Heriberto Cruz-Martínez is a Professor-Researcher at the Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla. He completed his Ph.D. in Nanosciences and Nanotechnology at the Center for Research and Advanced Studies of the IPN. He is a member of the National System of Researchers from Mexico, Level II. He has also authored more than 50 scientific articles with a high impact factor and four book chapters with prestigious international publishers. He has participated in more than 70 national and international congresses. His line of research is energy conversion and storage combining theory and experiments.