Electric Double Layer Capacitors (EDLC), commonly known as supercapacitors, are energy storage devices that store electrical energy via the electrostatic separation of charges. Unlike traditional capacitors, supercapacitors utilize a high surface area and a thin electrolyte layer to achieve a significant capacitance. They bridge the gap between conventional capacitors and batteries, offering rapid charge and discharge cycles along with high power density. EDLCs find applications in various fields that require quick bursts of energy. The market price of EDLCs vary based on factors such as capacitance, voltage rating, and brand. The prices range from a few dollars to several dozen dollars per unit, depending on the capacitance value and other specifications. When purchasing EDLCs, focus on key factors such as capacitance, voltage rating, cycle life and temperature range.These considerations help in selecting a supercapacitor that aligns with the specific needs of your project while ensuring long-term functionality and efficiency.