Application and development trend of super lithium-ion capacitors?

Application and development trend of super lithium-ion capacitors ?

       Li-ion capacitors have broad application prospects, because it combines the advantages of lithium batteries and traditional double-layer capacitors. Compared with lithium batteries , it is more stable and has fewer self-discharge electrodes; compared with electric double-layer capacitors , the two The charging speed is not much different, but the energy density is higher than that of the electric double layer capacitor, and the size is only a fraction of the latter when the storage capacity is the same.

　　At present, lithium-ion capacitors improved on the basis of electric double layer capacitors are used in four aspects: 1. Balanced wind power generation, when the power generation is small when the wind is light, it can be used for power supply; when the wind is strong, the capacitor can be used to store electricity without causing waste; 2. Street lamp battery, a fully charged unit (including LED lighting, solar panels, lithium-ion capacitors) can maintain lighting all night, if nickel-metal hydride batteries or lithium-ion batteries are used, a complex control module must be designed; 3. Mains power balance, the same as the principle of wind power generation, lithium-ion capacitors assist peak current in UPS uninterruptible power supply systems, engineering elevators and other applications, so as to realize the miniaturization of the system through the small capacity of the main power supply; 4. Backup power supply: large power vehicles and small electronic control equipment applications.

　　Lithium-ion capacitors are attractive in terms of added value due to their miniaturization advantages, and at the same time, their good reuse characteristics reduce the trouble of replacement and maintenance. As a high-end power supply, its development shows good prospects.

　　1. Replace electric double layer capacitors and some special-purpose lithium capacitors, but the replacement speed is not fast, which is determined by the cost performance.

　　2. The scope of application is expanded.

　　3. In terms of industrialization by country, Japan will continue to lead, while China is relatively lagging behind.

　　4. Mass production still requires technological breakthroughs, especially breakthroughs in new material technologies. We may learn from current lithium battery technology improvements, especially power lithium batteries .Technical improvement, because power lithium batteries have relatively high requirements on safety and consistency, technological progress in this area will inevitably have a major role in promoting lithium-ion capacitor technology.