Components of supercapacitors can vary from product to product. This is caused by Farad capacitor The structure of the package is determined. For the placement of prismatic or square packaging product parts, the internal structure is based on the setting of internal parts, that is, the internal collector is extruded from the stack of each electrode. These collector pads will be soldered to the terminals to extend the current path outside the capacitor.

Super capacitors are used in situations with high energy density requirements and long operation cycle, and their main disadvantages are as follows:

Low withstand voltage. At present, the withstand voltage of super capacitors is far lower than that of ordinary capacitors, and the voltage is about 1-3V. If the series method is used to drive, the volume of the energy storage system is relatively large, which is not conducive to driving high-power equipment.

Low specific energy. The energy density of super capacitor is about 20% of that of lead-acid battery; If the same energy is stored, Super capacitor manufacturer Its volume and weight are much larger than those of batteries.

The longevity extension of the capacitance is relatively speaking, a process of continuous influence, not a function of extending the longevity after a short operation of a certain time. The factors affecting the longevity of the farad capacitor can be divided into two parts: first, the production process and process requirements, the control of moisture and magazine content, the formula and feeding of the chip; 2、 Super capacitor after production, application environment and cycle depth.

Voltage balance in series. In the production process of supercapacitors, there are uneven processes and raw materials. There are some differences in internal resistance, capacity and other parameters between capacitors of the same batch and standard. Therefore, Super capacitor module When the module is used, it is required to add a series voltage equalizing device to improve the energy utilization and safety of the module.

The terminal voltage fluctuates seriously. During the application of the super capacitor, its terminal voltage changes exponentially. When the super capacitor releases 3/4 D of energy, its terminal voltage will drop to 1/2 of the original voltage.