During the development of supercapacitors for more than 30 years, micro-supercapacitors have been widely used in small mechanical equipment, such as computer memory systems, cameras, audio equipment and auxiliary equipment with intermittent power consumption. Large-scale cylindrical supercapacitors are mostly used in the automotive field and natural power collection. As far as the next decade is concerned, Farad capacitors will be an important part of the transportation industry and natural power harvesting.

The low impedance of ultracapacitors is essential for many of today's high power applications. Regarding 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; in UPS systems, supercapacitors provide instantaneous power output as a supplement to the backup power supply of engines or other uninterrupted systems; small current, continuous discharge for a long time, such as computer memory backup power supply.

In the field of natural power harvesting, the wind power generation process 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 the pitch control system in wind power generation. The electric energy required during the operation is controlled by the hydraulic system. or battery to supply.

Power support when the public car is switched from one power source to another power source; instantaneous power pulse application, short-term power support for important storage and memory systems.

Large-scale supercapacitors (125 volts) can be used in the braking system of trains and subways, and can also provide energy output for material handling engineering vehicles; medium-scale supercapacitors (75 volts) can be used in solar energy harvesting because of its potential The characteristics of working at high temperature; 48V supercapacitors are used in cars; small-scale supercapacitors (within 2.7 volts) have great contributions to the continuous power supply of communication equipment and the storage backup power of computer memory systems.