A Manufacturing Method for Super Fast Charging Capacitor Circuit

A Manufacturing Method for Super Fast Charging Capacitor Circuit

People are increasingly concerned about green energy and the ecological environment. As a new type of energy storage device, supercapacitors are receiving more and more attention due to their irreplaceable advantages. Supercapacitors have many advantages, such as large energy storage, fast charging speed, long cycle life, high power density, good ultra-low temperature characteristics, and green environmental protection. Compared with batteries, it has advantages such as lower series equivalent resistance, longer service life, wider temperature operating range, wider voltage variation range, maintenance free, and sealability. At present, there are several charging methods for supercapacitors, including constant current charging, constant voltage charging, constant flow constant voltage charging, pulse current charging, and constant power charging. Super fast charging capacitor

Adopting constant current charging is a relatively simple method, but its disadvantage is that if the charging current is small, the charging time will be long. If the charging current is large, it may cause certain damage to the supercapacitor in the later stage of charging. High current charging not only shortens the charging time, but also greatly limits the energy storage of the supercapacitor. Constant voltage charging can greatly stabilize the double layer equilibrium potential of capacitors, which is conducive to the stable formation of the double layer. At the beginning of constant voltage charging, the charging efficiency increases with the increase of charging time, but when the charging efficiency reaches a certain level, it will decrease with the increase of charging time. Constant power charging can effectively improve charging efficiency and shorten charging time, but its control circuit implementation is relatively complex. The charging method has a significant impact on the charging efficiency, energy storage capacity, and charging time of supercapacitors. Constant current charging has high efficiency, but in the later stage of charging, the voltage at both ends of the capacitor is too high, which will affect the energy storage capacity of the supercapacitor; Low efficiency of constant voltage charging and slow charging time; The constant power charging control circuit is complex. So a combination charging method can be adopted to overcome the impact of different charging methods on the performance of supercapacitors. However, there is still a lack of supercapacitor fast charging capacitor circuits in current technology that have simple circuit structures, reasonable design, and high working reliability, which can solve the drawbacks of supercapacitors in a single fast charging mode and effectively protect the charging and discharging performance of supercapacitors.

A fast charging circuit for supercapacitors is provided, which has a simple circuit structure, novel and reasonable design, convenient implementation and low cost, improves the speed of the supercapacitor circuit, high working stability and reliability, and can effectively protect the charging and discharging performance of the supercapacitor. It has strong practicality, good usage effect, and is easy to promote and use.