The book delves into the various fabrication techniques employed in supercapacitor manufacturing and provides insights into performance evaluation methods. It explores the electrochemical aspects of utilizing carbon electrodes derived from biomass in supercapacitor design. The book explores real-world applications of electrochemical supercapacitors, focusing on the utilization of biomass-based materials and graphene. The book covers the concept of pseudocapacitors, providing insights into their unique electrochemical behavior and applications. The book explores the latest advancements in supercapacitor design, focusing on sophisticated electrolytes and interfaces. The book explores the integration of piezoelectric technology to drive self-powered supercapacitors for wearable devices. The book is likely to be used as a textbook for students pursuing degrees in materials science, chemistry, electrical engineering, or related fields.