What is a super capacitor? What are its advantages?

New battery technology vision: physical batteries Physical batteries refer to batteries that rely on physical changes to jointly supply and store electrical energy, such as instantaneous charging supercapacitors, flywheel batteries with specific power up to 5000-10000w/kg, etc., which belong to the physical battery family. 1. Super capacitor Super capacitor is a kind of power supply between traditional capacitors and batteries. The power density can reach 300-500w/kg, which is 5-10 times that of ordinary batteries. It mainly relies on double-layer and redox pseudo-capacitor charge to store electrical energy, and electrical energy does not occur in chemical reactions, so it is classified as a physical battery. Compared with chemical batteries, supercapacitors have three obvious advantages: repeated charging and discharging times can reach 100,000 times (traditional chemical batteries only have a few hundred to several thousand times), and the life span is much longer than chemical batteries; (2) supercapacitors The power density during charging and discharging is very high, and a large amount of electric energy can be released instantaneously, which can meet the power requirements of a wider range of vehicles; it has good adaptability to the working environment, usually the outdoor temperature is between -40℃ and 65℃, which can be stable Normal work (normal battery is generally -20℃~60℃). 2. Flywheel battery [Dianhuo] A brief analysis of new energy vehicle batteries and a list of future technologies The flywheel battery is a new concept battery proposed in the 1990s. It uses the principle of energy that occurs when the flywheel is charged and discharged. Both the Porsche 911GT3 hybrid car and the Porsche 918Spyder have flywheel batteries installed on the front wheels. During acceleration, this energy is transferred to the front wheels, adding acceleration and reducing the fuel consumption of the internal combustion engine. Due to the limitations of technology and material prices, the price of flywheel batteries is relatively high, which cannot reflect its advantages in small occasions. But flywheel batteries are increasingly used in space, mass transportation, and where large military storage facilities are required. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: A quick way to judge whether the battery is good or bad