DZN-2R5D506T

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Electric Double Layer Capacitors (EDLC), Supercapacitors

The DZN-2R5D506T belongs to the family of electric double layer capacitors (EDLC) or supercapacitors, because it has an enhanced ability to store electrical energy. The basic concept behind this is that they are capacitors with a very high capacitance relative to their size and volume. The DZN-2R5D506T is capable of storing up to 8.2V and can deliver a maximum of 2.0A.

Application field

The DZN-2R5D506T electric double layer capacitors are ideal for a variety of different energy storage applications. These include providing back-up power in applications when the power has gone off or when the power has dropped out for a very short period of time. They are also perfect for providing an emergency power supply for medical equipment in cases where the slightest power interruption may be dangerous.

Supercapacitors are also commonly used in portable and automotive electronic assemblies. The energy stored in the device can be used to carry out tasks such as controlling the temperature and illuminating dashboards. Supercapacitors are also an ideal choice for applications where frequent charge and discharge cycles occur. Examples of this could include applications such as wind turbines, in which the blades are constantly starting and stopping.

Additionally, EDLCs are used to power portable and emergency equipment, such as navigation lights or emergency lighting in hazardous locations. As they are lighter in weight than conventional batteries, they can be used with the inherent advantage of portability. They also have a longer lifespan, since manufacturers rate them for up to 10,000 cycles.

Working Principle

Electric double layer capacitors work on the principle that when opposite electrical charges move opposite each other, a capacitance is created which can store energy. This is known as the Electrical Faradaic effect. In EDLCs, a layer of electric charges is formed when two opposite charged layers come into contact. This charge is stored on ultra-thin layers of carbon which are separated by a very small distance, allowing for extremely high capacitances to be generated. As the assembly is charged, the distance between the positive and negative charges is reduced, allowing for higher energy storage capability.

In order to work, electric double layer capacitors require two electrodes separated by a dielectric layer. The electrodes typically consist of a metal mesh or carbon, and the dielectric layer is usually a solid or liquid electrolyte. When a voltage is applied to the terminals of the device, an electric field is created which attracts charges from the two stationary electrodes, producing the electric double layer.

By controlling the surface area exposed to the electrolyte, the capacitance of the device can be tuned. The capacitance will increase as the surface area of the electrode increases, so larger capacitors are usually used for applications with high energy storage requirements.

Conclusion

The DZN-2R5D506T electric double layer capacitors are a great choice for a variety of energy storage applications. They have a very high capacitance to size ratio, and are capable of storing up to 8.2V and delivering current of up to 2.0A. They are ideal for powering portable and automotive electronic assemblies, and possess the advantage of portability and a long lifespan.

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