Super capacitor

During the development of supercapacitors for more than 30 years, micro - supercapacitorsLarge-sized cylindrical supercapacitors are mostly used in the automotive field and natural energy harvesting. In terms of development over the next decade, supercapacitors will be an important part of the transportation industry and natural energy harvesting.

1. Large-sized supercapacitors (125 volts) can be used in braking systems of trains and subways, and can also provide energy output for material handling vehicles; medium-sized supercapacitors (75 volts) can be used in solar energy harvesting because of its It has the characteristics of working at high temperature; 48V super capacitors are used in automobiles; small size super capacitors (within 2.7 volts) make great contributions to the continuous power supply of communication facilities and the storage backup power of computer memory systems.

2. The low impedance of supercapacitors is essential for many high-power applications today. For fast charging and discharging, the small ESR of supercapacitors means greater power output, charging in seconds and discharging in minutes. Such as power tools, electric toys;

3. In UPS systems, supercapacitors provide instantaneous power output as a supplement to backup power for engines or other uninterrupted systems;

4. Power support when the bus switches from one power source to another; 

5. Small current, continuous discharge for a long time, such as computer memory backup power supply;

6. Instantaneous power pulse application, short-term power support for important storage and memory systems.

In the field of natural energy harvesting, the wind power generation workflow is inseparable from hydraulic systems or batteries. Because every time the fan blade of the generator stops, the internal turbine will adjust the fan blade to the specified position. This process is called pitch control system in wind power generation. The electric energy required during the operation is controlled by the hydraulic system. or battery supplied. For the battery, the intermittent work intensity is high, coupled with the perennial load, which will greatly reduce its service life. For this reason, each wind turbine will be "worked at heights" every few years, and the maintenance and replacement of batteries is also a large expense. High-power supercapacitors can replace batteries for this work by taking advantage of their fast charge and discharge characteristics and long cycle life. Although the initial investment cost is high, the cost is lower than frequent maintenance and battery replacement, and it can also reduce work intensity. . So far, supercapacitors have not penetrated this energy network as a hot auxiliary device.