Electrochemical Supercapacitors for Energy Storage and Conversion

Abstract In today's world, clean energy storage devices, such as batteries, fuel cells, and electrochemical capacitors, have been recognized as one of the next‐generation technologies to assist in overcoming the global energy crisis. Electrochemical capacitors, also referred to as supercapacitors , are special types of capacitors possessing fast charging capabilities, long life cycles, and low maintenance costs. As a result, supercapacitors are used in a variety of commercial applications such as emergency backup powers, consumer electronics, and hybrid vehicles. Even though supercapacitors are restricted by its low energy density and high cost challenges, research and development will gradually overcome these limitations. The proposed articles focus on the fundamental theory behind supercapacitors, including the types of supercapacitors and their energy storage supercapacitors, as well as quantify the performance of these devices. Furthermore, the following articles help illuminate the practical aspects of supercapacitors in commercial applications and the current technological progression.