Supercapacitors: Future Direction and Challenges

The development of high-potential energy storage (ES) devices via advanced technologies is at the forefront of the current research scenario related to science and technology. Supercapacitors (SCs) or Electrochemical capacitors with longer durability and faster capability of charge storage are proved as emerging candidates in the energy domain. However, SCs are not a viable option in comparison to batteries and fuel cells for practical applications. There is also an urgent requirement of fabrication methods, which must be encountered to provide a suitable SC electrode. Herein, in this book chapter, a brief description of the various challenges experienced in terms of the manufacturing of the devices and market applications will be critically examined, and potential solutions towards the future technology will be provided. A major part will focus on the already developed and reported supercapacitor material and technologies. The book chapter will be able to impart a better understanding of the challenges at different stages of the research, manufacturing, and practical implication of SC in the market. Finally, a conclusive outlook of how the above-mentioned discussion will provide critical insights and generate opportunities to increase the potential scope of new-generation SCs has been discussed.