The development of super capacitor/ultra capacitor is a revolution of energy storage equipment (batteries). Other energy storage devices are transformed from electrical energy to chemical energy, then from chemical energy to electrical energy. There is loss of energy in two transformations. Super capacitor/ultra capacitor charges directly, discharges directly, and the form of energy does not change. The charge and discharge efficiency is as high as 98%, and the economic value is high, only 70% of lead-acid batteries.
Ultracapacitor is a product that emerged in the late 1970s. It breaks through the traditional design idea of capacitor. The capacitor has been raised from micro-farad level to farad level (1 farad = 106 micro-farad), creating 1000 farad level Super capacitor/ultra capacitor; by the end of last century, 10,000-100,000 methods have appeared successively. Since then, the traction Super capacitor/ultra capacitor has entered the battery application market, and a new concept of super capacitor/ultra capacitor electric vehicle has emerged. With its excellent performance, it has changed people's traditional understanding and established a new design idea of transportation electric vehicle.
Super capacitor/ultra capacitor is larger than power. Its characteristics are: when charging, the charge amount is large and the charge amount is fast; when discharging, the discharge amount is large and the discharge amount is fast. When the electric vehicle is running, it has fast start, fast acceleration, powerful climbing, more than 30 times larger than lead-acid batteries, which are the most important performance that the electric vehicle can use.
Super capacitor/ultra capacitor is smaller than energy. Its characteristic is that the same weight Super capacitor/ultra capacitor has only one third of the driving mileage of lead-acid battery, which is a major defect of Super capacitor/ultra capacitor. Super capacitor/ultra capacitor has short driving mileage and short running distance, but it's charging speed can make up for the shortcoming of short driving mileage. The remedy is to establish charging stations at both ends of urban traffic lines, so that the driving mileage of Super capacitor/ultra capacitor electric vehicle can be unlimited.
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