The capacitance of a supercapacitor unit is as high as several to tens of thousands of farads. Because this structure adopts a special process, its equivalent resistance is very low, its capacitance is large, and its internal resistance is small, so that the supercapacitor has a high peak current, so the supercapacitor has a high specific power, and its power The density is 50 to 100 times that of batteries, which can reach about 10 × 103W/kg. This feature makes supercapacitors very suitable for short-term high-power applications.
Use in close-range weapons. The shipborne and land-based short-range high-speed anti-aircraft artillery systems use an external power supply system, which requires energy storage equipment such as batteries to form an energy storage system. However, because the artillery requires instantaneous high-power energy support during the firing process, the power performance of the battery is poor. , and the battery still has a series of problems such as the need for regular protection and poor high and low temperature functions. The super capacitor module has many advantages, such as the pulse power is nearly ten times higher than that of the battery, it can complete frequent high-power discharge, protection-free, good high and low temperature functions, and the specific capacity is more than 100 times higher than that of ordinary capacitors, making it a substitute for An energy storage device with excellent battery performance.
Low temperature start. In winter in northern my country, heavy trucks, tanks, tanks, etc. that use batteries as power sources are often difficult to start due to the low temperature. The discharge capacity of Farad capacitors in a low temperature environment is significantly reduced, and the internal resistance increases sharply, which will lead to a decrease in the low temperature and high current discharge function and output power of the battery, making it difficult or even impossible to start the vehicle, affecting normal work and military readiness. Supercapacitors have the characteristics of working normally in the temperature range of -30+50℃, which can provide an excellent solution for low temperature starting, and can protect the battery and prolong the service life of the battery.
It is used in situations such as vehicle acceleration and climbing. The vehicle battery must have a certain capacity to meet the design requirements of the vehicle. During the driving process in the vehicle, the high-power load situation formed by sudden acceleration, braking or climbing, load and other harsh conditions requires the battery to complete high-power discharge, while The high-power function of the battery is lacking. Even if it can complete high-power discharge, it will affect its life. If the supercapacitor is used in parallel with the battery, the high-power advantage of the supercapacitor can be effectively compensated for the lack of battery power.