The supercapacitor is a branch of capacitor, which we often call farad capacitor. It has the characteristics of fast charging and discharging of the capacitor, and also has the advantages of low internal resistance, large capacity and large capacity. long life.< /strong>Supercapacitorshave good high and low temperature performance and can be stored in carsin high temperature environmentsfor a long time without problems of security. Compared to the 45°C operating temperature of lithium batteries, supercapacitors have a wider operating temperature, so you don't have to worry about putting them in the car. And supercapacitors can be stored at zero voltage and charged via mobile power or remaining battery power during use, so there is no need to worryQuiet for safety.
About capacitors and batteries
Farad capacitors (supercapacitors) charge quickly, in just a few minutes, but currently electrolytic capacitors are generally used, with low voltage resistance and easy to break. To get high voltage they must be connected in series, the more strings in series the smaller the capacity. volume and weight will increase. Otherwise, you will have to recharge it from time to time. It seems that buses used in the Shanghai World Expo area can only travel a few kilometers. Take advantage of short stops to recharge your batteries, eliminating the need for tram rails or dragging. Currently, it cannot be used in cars, electric motorcycles and electric bicycles, and the problem of charging along the way needs to be solved. However, it can be usedas a starting capacitor for electric vehicles, mainly taking advantage of its small internal resistance and fast charging characteristics, that is, using the large current of supercapacitors and the large capacity of batteries or lithium batteries in parallel with lead. -acid batteries or lithium batteries to start and assemble electric vehicles. Battery overcharge current is reduced during inclines, significantly improving mileage range and battery life. In the future it will be good to have a high voltage (up) resistor. at 220 V). For example, a 48V electric vehicle can only travel 15 meters with a 1 Farad supercapacitor, 48V requires more than 18 2.5V electrolytic capacitors in series. A series of 18,700 Farad capacitors has only 4 Farads. only run 60 yards. The volume is equivalent to half a batterylithium and can only be used as a starting capacitor. For example, high voltage farad capacitors do not need to be connected in series. A 700 farad capacitor can travel 10 kilometers, and eight of them in parallel can travel 80 kilometers. The volume and weight are the same as lithium batteries. the capacity is twice as large. Nowadays, the withstanding voltage of electrolytic capacitors is only 2.0V. At that time, the capacity of high-voltage supercapacitors could reach 2-3 times that of lithium batteries of the same weight, and their service life life could reach more than 500,000 times. Theoretically, supercapacitors charge and discharge without chemical conversion, and their lifespan is limited only by electronic components such as integrated circuits in the scale's protection circuit. .
How to charge a 3000f farad capacitor
The above problems you mentioned can now be achieved if cost and size are not considered. This can be achieved with supercapacitors (also called farad capacitors). Large power supply filter capacitors used today only have a capacity of several tens of thousands of microfarads. If you ignore cost and size, you can use thousands or more supercapacitors (1 farad = 1,000 microfarads) as batteries to power some small electronic products. The advantage of using supercapacitors as power sources is that the charging speed is very fast (it can generally be fully charged within tens of seconds to minutes) and the number of charging and discharging times is very high. Much more than today's lithium batteries. Not long ago, the press reported that Israel had developeda new energy storage device for mobile phones, capable of being fully recharged in a few tens of seconds. However, the withstand voltage of current supercapacitors is generally very low, generally between 2 and 5 V, and their size is relatively large. In the future, with the development of nanotechnology, wearable supercapacitors will definitely be produced using new materials and processes, and the charging speed of mobile phones and electric vehicles will be greatly reduced.
Be very careful when charging the 3000f farad capacitor, once the farad capacitor is discharged. The charging current will be very large when charging. The requirements for chargers are very strict. It can be charged with an adjustable power supply that gradually increases the voltage. This way the charging current will be very low.
Supercapacitor is also called Farad capacitor, which is also a type of capacitor. To put it simply, it is a capacitor that can store super multiple charges. Its charge storage area is very large and the charging distance is very small, which makes it have a very large capacity compared with ordinary capacitors. This technology is not new. It was widely used in the 1970s and 1980s.
Farad Capacitors
The most common application scenario is to power camera flashes. Anyone who has used a flash knows that after using it once, you have to wait a few seconds until you hear a beep indicating that the supercapacitor is fully charged before you can use it. Supercapacitor, the same as the Farad capacitor? Can you start the car? The CRRC breaks the foreign monopoly. Supercapacitors presentnt very remarkable advantages.
First, the loading speed is very fast, and some can finish loading in seconds.
Secondly, the service life is very long, and the number of deep charge and discharge cycles can easily reach hundreds of thousands of times. As with lithium batteries, if the number of deep charge and discharge cycles is more than 3,000, it is considered very good. In addition, it does not have a memory effect and will not be able to charge less and less energy like lithium batteries. Anyone who has used a cell phone knows this.
Third, the discharge rate is extremely high, it can release most of the energy instantly, and the efficiency is very high. Just like when we play games and hold our ultimate move for a long time, we can complete it in one go. In addition, it has an energy densityhigh EU, green and environmentally friendly life cycle, wide operating temperature range, simple charge and discharge current, convenient detection, etc.