With the development of the times and the progress of science and technology, environmental problems cannot be ignored. In order to protect the environment, we should travel low-carbon and green. One of the reasons for the bad environment is that there are too many cars started with gasoline and diesel. The exhaust from cars not only smells bad, but also pollutes the air and damages human health. In order to solve the problem of automobile exhaust emission, new energy electric vehicles have emerged.
The main source of new energy for electric vehicles is batteries. However, the power supply used by some new energy buses is super capacitor. The new energy buses equipped with super capacitor can be quickly charged within a short time when passengers get on and off at the stop. The charged power can make the new energy buses run 10 kilometers.
Supercapacitor is a new type of energy storage device. It is an electrochemical component between traditional capacitor and rechargeable battery, also known as Faraday capacitor, electric double-layer capacitor and so on. Developed in the 1970s and 1980s, it stores energy through polarized electrolyte, but there is no chemical reaction in the process of energy storage. This energy storage process is reversible. Therefore, the super capacitor can be charged and discharged hundreds of thousands of times repeatedly for a long time.
Because the super porous material has excellent charge absorption and discharge capacity, the surface area of the carbon can be increased by 10-15 minutes, and the charge storage capacity of the new line can be increased very quickly, In the process of power storage, there is no chemical reaction, and the charge can be stored directly. In the process of charging and discharging, the energy conversion rate is high and the loss is small.
Compared with the battery charging for half an hour before charging to 70% ~ 80%, the super capacitor charging for 10 seconds ~ 10 minutes can reach more than 95% of its rated capacity. The charging efficiency is higher than that of the battery. In short distance driving, the advantage of the super capacitor is stronger than that of the battery, which is why the power supply used by the new energy bus is not the battery but the super capacitor.
Post time: May-23-2022