Nilesh R. Chodankar received his Ph.D. degree in Physics from Shivaji University, Maharashtra, India in 2016. During his Ph.D. study, he worked on flexible-solid state supercapacitors derived from metal oxide-carbon composite electrodes and polymeric gel electrolytes. Soon after graduating, he received his first international postdoctoral position at the Chemical Engineering Department, Chonnam National University, South Korea where he explored the utilization of different carbon-based nanomaterials and atomic layer deposition (ALD) techniques for energy-oriented applications in collaboration with Prof. Do-Heyoung Kim. Currently, he is working as an Assistant Professor at the Department of Energy & Materials Engineering, Dongguk University, South Korea. In his research career, he has worked on multidisciplinary research projects in the areas of material science and engineering for sustainable energy storage and conversion systems. He has made a genuine contribution to his field with more than 83 high-ranking peer-reviewed articles, which have attracted more than 3500 citations. Deepak P. Dubal is a Professor at Queensland University of Technology, Brisbane, Australia. With an extensive background in the field of nanomaterials for clean energy conversion and storage systems, Professor Dubal’s current research is focused on designing and engineering functional materials such as new oxides/nitrides, polyoxometalates (POMs), and conducting polymers and their hybrids for energy storage applications, with special emphasis on supercapacitors, Li-ion batteries, and beyond Li-ion batteries. He is working to develop an integrated system as a self-charging power source for wearable electronics and implantable medical devices.