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About supercapacitor

Time:2024-01-10 10:51:00 Hits:

In the short stop and then start the car model, the power required to power a small motor is provided by whom? Whether it is the main battery to provide power?
Light hybrid system in the new energy automobile intelligent start-stop, not only reduce fuel consumption, improve environmental performance, and to eliminate the vibrations at idling car, for environmental issues and comfortable driving has a good supporting role.
Under light hybrid system, the output power by a small motor attached on the control to start the engine belt adjustment, however, stopped short in the automotive restart mode, the power required to power a small motor is provided by whom? Whether it is the main battery to provide power?
The main power and energy of the most common new energy vehicles by lithium battery (Lithium ion) or acid-metal hydride batteries (NiMH) provided, however, provide instantaneous power for the battery, the energy density of transport can not meet the requirements, the shortest possible time and thus can not promote small operation of the motor; another point, due to the small motor intermittently strong light hybrid system, running frequently, indirect supply have a significant impact to the battery life. Number of batteries used in general in 2000-3000 times, if the average car stopped short ten times a day, within a year, due to the frequency of use and the battery will have to be replaced. Batteries are expensive part of the new energy vehicles, so it does not pay to replace it on the economy. Therefore, we need a quick charge and discharge, and to a high frequency cycle batteries used to support the operation of the motor under small light hybrid system. Applications supercapacitor is the best choice.
48V super capacitor
The difference between the battery and supercapacitor
Lithium batteries, nickel-hydrogen battery charge and discharge are accompanied by a chemical reaction inside. By oxidation of lithium ions, the reduction reaction the discharging and charging, charge and discharge times are generally a single lithium battery can reach about 2000 times.
Lithium battery internal structure
Super capacitor charge and discharge process is a physical reaction. Inside the battery energy storage is the key to the ability of the separator. Super-capacitor work, the battery negative electrons flow to the cathode through the use of electrical appliances, releasing the energy charge and vice versa. Such physical reactions can be carried out up to 50,000 times.
Advantages of ultracapacitors
1. Charging speed, as long as the charging tens of seconds to a few minutes to more than 95% of its rated capacity, and the battery needs to charge for about 10 hours;
2. The long cycle life, depth of discharge cycle times of up to ten thousand times, continuous use up to 5 years;
3. Super high-current discharge capability, high energy conversion efficiency, small process losses, high current power cycle efficiency of greater than 90%;
4. High power density, ten times the normal battery;
5. Raw material composition, production, use, storage and dismantling are not pollution, is the ideal green power
6. The discharge line is simple, no internal chemical reactions, high safety factor, the need to maintain fewer
7. environmental adaptability, using a temperature range of -40 ℃ ~ + 70 ℃