Conducting Polymers for Pseudocapacitors

The energy crisis has increased the need for energy storage materials with high power and energy density. To solve the problem, scientists have investigated the possibilities of pseudocapacitive materials, which may overcome the capacitive constraints of electrical double-layer capacitors and the mass transfer limitations of batteries, making them better energy storage applications. Conducting polymers, which offer unique qualities such as low cost, good electrochemical properties, and high conductivity, have garnered substantial interest in energy storage devices. Because of their high potential to increase working performance, conducting polymers have been studied in numerous energy storage devices such as supercapacitors, batteries, and fuel cells, making them intriguing alternative materials. This chapter comprehensively overviews conducting polymers’ contributions to energy storage. We address the theoretical foundation of conductivity in conjugated polymers, multiple methods of producing conducting polymers, their uses in supercapacitors, and the distinctions between electrochemical supercapacitor technologies. Furthermore, we highlight recent breakthroughs in conducting polymers for energy storage, providing an overview of the field’s current condition and future direction.