What is EDLC?
In general, capacitors have an insulating material, known as a dielectric, between two opposing electrodes.
However, EDLC operates without a conventional dielectric. Instead, it leverages a physical mechanism to create a double-layer structure with dielectric-like properties. This is why it is referred to as a double-layer capacitor. The charging and discharging process in double-layer capacitors occurs through an ion-absorption layer formed on the surfaces of the positive and negative electrodes, utilizing a phenomenon known as adsorption and desorption.
Building upon the foundation of button cell supercapacitors, these capacitors have undergone changes in packaging and materials to withstand reflow soldering peaks of up to 260°C for less than 5 seconds.
This modification enhances the ease of production and assembly, ultimately reducing manual labor costs. They offer a wide operating temperature range from -40°C to +85°C and a voltage tolerance range from 3.6V to 5.5V.
They find their primary applications in various devices and equipment, including: Backup power for video and audio equipment, Cameras, Televisions, Printers, Phones, Automotive sound systems, Electric meters, Toys, Computers, Laptops, Rice cookers, Home networks.