What is the super capacitor / farad capacitor? – Super Capacitors – Electronics Industry
, Also known as electric double layer Capacitor (ElectricalDoule-LayerCapacitor), gold capacitor, farad capacitor, through the electrolyte to the polarization energy storage. It is an electrochemical device, but its energy storage is not a chemical reaction process, this energy storage process is reversible, which is why the super-capacitor can repeatedly charge and discharge hundreds of thousands of times.
super capacitor can be considered as suspended in the electrolyte in the reactivity of the two non-porous electrodes, in a very on-board power-up, positive plate attracts the negative ions in the electrolyte, negative plates attract positive ions, in fact, form two a capacitive storage layer, was separated from the negative plate in the vicinity of positive ions, negative ions near the positive plate.
Capacitor supercapacitor why its different from the traditional "super" in what?
supercapacitors charge in the isolated stored energy, the larger the area used to store charge, isolated charge more intensive, the greater its power capacity. traditional capacitor plate area is the conductor area, in order to obtain larger capacity, conductor roll very long, sometimes with a special structure to increase its surface area. conventional capacitor is its insulating material separating the bipolar plate, usually of plastic film, paper, these materials are usually expected to do may be thin. super capacitor area is based on the porous carbon materials, the material porous enough to allow the junction area of 2000m2 / g, through a number of measures to achieve greater surface area. Supercapacitor the distance separating the charge to be attracted by to the charged electrode of the electrolyte ion size of the decision. the distance (<10Å) and traditional capacitors thin films can achieve a smaller distance. such a large surface area coupled with a very small distance makes the super capacitor charge separation over traditional capacitors are amazing in terms of a large electrostatic capacity, which is its "super" is located.
Supercapacitor which the advantages and disadvantages?
One advantage very small class sizes next to Farah capacitance;
do not need to control the charging circuit and discharge circuit
and Battery Compared to overcharge, over-discharge is not a negative influence on their life;
From an environmental point of view, it is a green energy;
supercapacitor welding, which does not exist as Battery Issues such as access to non-solid;
Two shortcomings if used improperly can cause electrolyte leakage and so on;
and Aluminum Electrolytic Capacitor Compared to its large internal resistance, which can not be used for AC circuit; What are
supercapacitor application? super-low impedance capacitors for many of today's high-power applications is a must. For rapid charge and discharge, a small super capacitor ESR mean power output greater. instantaneous power pulse applications, key storage, memory system The short power support.
Application examples 1, fast charge applications, charging a few seconds, minutes discharge. Such as power tools, electric toys;
2, in the UPS system, super capacitors to provide instantaneous power output, as the engine or other ongoing system backup Power supply Supplementary;
3, apply sufficient energy, the power shortage of energy, such as solar energy;
4, when the bus from a power source to switch to another power source, power support;
5, a small current, prolonged discharge, such as computer memory back-up power;
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