Cycle Life Is Long Super Capacitor 2.7V 100F Good Ultra-Low Temperature Characteristics​

The structure of a supercapacitor is no longer that of a flat plate electrode (or a flat plate electrode rolled into a tube) filled with a dielectric material in the middle—like peanut butter in the middle of a sandwich. In supercapacitors, charge/discharge of charge occurs at the interface between porous carbon materials or porous metal oxides in the electrolyte.

The Helmholtz layer induces an effect known as double layer capacitance. When a DC voltage is applied across the porous carbon electrodes in a supercapacitor, cations or anions used for charge compensation accumulate in the electrolyte around the charged electrodes. If electron migration does not occur across the interface, then "two layers" of separated charge (electrons or electron-holes on the metal side, and cations or anions on the electrolyte side of the interface boundary) will appear at the interface

The process flow of the supercapacitor is: batching→mixing→electrode making→cutting→assembling→liquid injection→activation→testing→packaging.

The exact details of supercapacitor construction depend on the application and use of the supercapacitor. These materials may vary slightly due to manufacturer or specific application needs. The commonality of all supercapacitors is that they all contain a positive electrode, a negative electrode, and a diaphragm between the two electrodes. The electrolyte fills the two pores separated by the two electrodes and the diaphragm.

The structure of the supercapacitor. It is composed of porous electrode material with high specific surface area, current collector, porous battery separator and electrolyte. The electrode material and the current collector should be closely connected to reduce the contact resistance; the separator should meet the conditions of having the highest possible ionic conductivity and the lowest possible electronic conductivity, generally an electronic insulating material with a fiber structure, such as polypropylene film . The type of electrolyte is selected according to the nature of the electrode material.

Features of super capacitors:

(1) The charging speed is fast, and it can reach more than 95% of its rated capacity by charging for 10 seconds to 10 minutes;
(2) The cycle life is long, the frequency of deep charge and discharge cycles can reach 10,000 to 500,000 times, there is no "memory effect", and there is no problem of over-discharge;
(3) The high current discharge capacity is super strong, the energy conversion efficiency is high, the process loss is small, and the high current energy cycle efficiency is ≥90%;
(4) High power density, up to 300W/KG~5000W/KG, equivalent to 5~10 times of battery;
(5) The raw material composition, production, use, storage and dismantling process of the product are not polluted, and it is an ideal green power source;
(6) The charging circuit is simple, no charging circuit like rechargeable battery is needed, and long-term use is maintenance-free;
(7) Good ultra-low temperature characteristics, temperature range -40 ° C ~ +70 ° C;
(8) Easy to detect, the remaining power can be read directly;

Supercapacitor should be a general term for capacitors with extremely high energy storage density and fast discharge performance. The supercapacitors produced by our factory have super power, super high current, super wide working range, super high safety, super long life, etc. The characteristics of energy storage and the combined use with other energy storage products have become mainstream.