Using supercapacitors

Using supercapacitors

The principle of supercapacitors is not a new skill. Most common supercapacitors have a double layer structure. Compared with electrolytic capacitors, this type of supercapacitor has a very high energy density and power density. Compared with traditional capacitors and secondary batteries, supercapacitors have a higher capacity of storing charge than ordinary capacitors, and are characterized by fast charging and discharging, high efficiency, no pollution to the environment, long cycle life, wide application temperature scale, and high safety.

In addition to being able to charge and discharge quickly, another primary feature of supercapacitors is their low impedance. So, when a supercapacitor is fully discharged, it will exhibit small resistance characteristics, and if not constrained, it will pull the possible source current. Therefore, it is necessary to choose a constant current or constant voltage charger.

Supercapacitor

Although there are now many supercapacitor manufacturers worldwide that can supply many types of supercapacitor products, most of the products are based on a similar double layer structure. Supercapacitors are very similar in structure to electrolytic capacitors, and their primary difference lies in the electrode material.

Supercapacitors have a wide range of applications. Combined with high energy density materials such as fuel cells, supercapacitors can provide rapid energy release, meet high power requirements, and then enable fuel cells to be used solely as energy sources. Now, the energy density of supercapacitors can reach up to 20kW/kg, and they have begun to seize the market share between traditional capacitors and batteries.

In applications that require high reliability but do not require high energy, supercapacitors can be used to replace batteries, or supercapacitors can be combined with batteries for applications that require high energy, and smaller and more economical batteries can be selected.