Supercapacitors are mainly composed of electrodes, electrolytes, diaphragms, current collectors, and other parts. The main function of the electrodes is to store energy. The main function of the diaphragm is to prevent short circuits inside the capacitor. The current collector is used to collect current and carry the active material of the electrode. For supercapacitors, the adhesion thickness of the electrode active material on the surface of the current collector and related processes will greatly affect the performance of the supercapacitor, which is the key to the manufacture of the supercapacitor. So how to make a supercapacitor?
Most commercial supercapacitors are cylindrical. This type of supercapacitor is mainly formed by winding two electrodes attached to the active material of the aluminum current collector. The separator is located between the two electrodes to prevent the formation of electronic short circuits. The ends are respectively located at the upper and lower ends of the winding core winding.
When the winding is completed, the prepared core winding is placed in a hard shell, and the positive and negative output ends are connected with the shell, and the electrolyte is injected for sealing to prevent impurities from polluting the electrolyte and active materials.
In order to improve the heat dissipation performance of the product, there is another supercapacitor on the market, which is a soft package supercapacitor. The production process of the product is similar to the production process of the soft-packaged lithium-ion battery. It is made by a lamination process. The electrodes with the same polarity are stacked and connected in parallel, and the product is sealed through an aluminum-plastic film. The price of this type of product is higher than that of cylindrical products because it has excellent heat dissipation performance and is suitable for ultra-high power application scenarios.
At present, cost reduction is a hot direction in the development of supercapacitors, mainly through the development of low-cost materials and research on new low-cost production processes to reduce production costs. Some studies believe that when the cost of materials drops by 90%, the price of supercapacitor products will drop by 50%. Some new production processes are currently in the research stage. It is expected that in the next few years, there will be a major breakthrough in the production process of supercapacitors. At that time, product prices will fall further.
JINZHOU KAIMEI has quality supercapacitor for sale, you can send a email to info@kamcap.com or dial at +86-18640666860 if interested.
English
