Jul. 11, 2022
Supercapacitors are a new type of electrochemical capacitors, also known as electric double layer capacitors and farad capacitors. Supercapacitors, which use polarized electrolytes to store energy, have been developed since the 1970s and 1980s. Since there is no chemical reaction when the supercapacitor stores energy, and the energy storage process is reversible, the supercapacitor can be repeatedly charged and discharged hundreds of thousands of times and can be used for a long time.
Due to the advantages of large capacitance, fast charging and discharging speed, and long working time, supercapacitors are used in power supplies such as electronic equipment, new energy vehicles, circuits and other industries. Especially in the occasions where long-term power supply and energy storage are required, no capacitor is more suitable than super capacitors.
So why are supercapacitors called electric double layer capacitors and farad capacitors? Are they random names? Actually, each capacitor is named according to its working principle or advantages.
Electric double layer capacitor: The two electrodes in the capacitor are inserted into the electrolyte at the same time, and a voltage less than the decomposition voltage of the electrolyte solution is applied between the two electrodes. The positive and negative ions in the electrolyte move to the two poles under the action of the electric field. A dense charge layer is formed on the surface of the electrode, that is, the electric double layer, which is the origin of the name of the electric double layer capacitor.
Farad capacitors: In the case of similar volume, the capacitance of super capacitors is much larger than that of ordinary capacitors. The capacitance of ordinary capacitors is as small as the microfarad level, while the capacitance of supercapacitors has reached the farad level, so supercapacitors are also called farad capacitors.
The origin of the names of electric double layer capacitors and farad capacitors is based on the principles or characteristics of super capacitors. Other capacitors also have other names, which are also named according to their own characteristics or principles.
Select a reliable manufacturer when purchasing supercapacitors can avoid a lot of unnecessary trouble. JYH HSU (or Dongguan Zhixu Electronics) not only has full models of ceramic capacitors with guaranteed quality, but also offers worry-free after-sales. JEC factories has passed ISO9001:2015 quality management system certification; JEC safety capacitors (X capacitors and Y capacitors) and varistors have passed the certification of various countries; JEC ceramic capacitors, film capacitors and super capacitors are in line with low carbon indicators.
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