Supercapacitors, also known as ultracapacitors, fall into this category. In this review, we will explore what makes this quickly evolving type of capacitor “super,” and how its unique characteristics might be utilized. In less than 10 years, these high charge electrochemical devices have evolved in two directions from the large, low voltage cylindrical devices originally designed for DC applications such as voltage hold-up for clocks in microwave ovens & VCRs. In this paper, the history, evolution, fabrication, evaluation, and applications of supercapacitors are analysed along with. . Supercapacitors (SCs) are an emerging energy storage technology with the ability to deliver sudden bursts of energy, leading to their growing adoption in various fields. This paper conducts a comprehensive review of SCs, focusing on their classification, energy storage mechanism, and distinctions. .
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