Classification, advantages and applications of 18650 lithium ion batteries

Classification, advantages and applications of 18650 lithium ion batteries. The 18650 lithium-ion battery pack is the lithium-ion battery with the longest service life in the world. The shadow of the 18650 lithium-ion battery pack can be seen in many fields, because this battery has obvious advantages relative to other batteries, and its safety is relatively good, and it has been used in large-scale equipment. Classification of 18650 lithium-ion battery packs 1. According to the actual performance of the battery, classify power batteries and energy batteries. Energy batteries have the characteristics of high energy density and are mainly used for high energy output. Power-type batteries have the characteristics of high power density and are mainly used for instantaneous high-power output and output batteries. 2. According to the electrolyte material, lithium ion batteries are divided into liquid lithium ion batteries (LIB) and polymer lithium ion batteries (PLB). Liquid lithium-ion batteries use liquid electrolytes (currently used for power lithium batteries). Lithium-ion polymer batteries have been replaced by solid polymer electrolytes, which can be dry or colloidal. At present, most of them are polymer gel electrolytes. In solid-state batteries, the electrodes and electrolyte are both solid. 3. According to the product appearance, the 18650 lithium ion battery components are classified into cylindrical, flexible and square. Steel or aluminum shell for cylindrical and square packaging. The flexible packaging is aluminum-plastic film. In fact, the flexible packaging is square. The commonly used aluminum-plastic film packaging on the market is called flexible packaging, and some people call it a polymer battery. The 18650 lithium ion battery has the following advantages: 1. Widely used in notebook computers, walkie-talkies, portable DVDs, instrumentation, audio equipment, airplane models, toys, video cameras, digital cameras and other electronic equipment. 2. Series 18650 lithium ion batteries can be combined in series or in parallel. 3. Small internal resistance. The internal resistance of polymer batteries is smaller than that of liquid batteries. The internal resistance of domestic polymer batteries can even be less than 35m, which greatly reduces battery power consumption and prolongs the standby time of mobile phones, which can reach international standards. The polymer lithium-ion battery supports large discharge currents and is ideal for remote control models, and is the most promising alternative to nickel metal hydride batteries. 4. Do not empty the remaining power before charging the 18650 lithium ion battery without memory effect, it is convenient to use. 5. The voltage of high-voltage 18650 lithium-ion batteries is generally 3.6v, 3.8v, 4.2v, which is much higher than the 1.2v voltage of nickel-cadmium batteries and nickel-hydrogen batteries. 6. High safety performance 18650 lithium ion battery has high safety performance, non-explosive, non-combustible; non-toxic, non-polluting, RoHS trademark certification; various safety performance, more than 500 cycles; high temperature resistance, 65 degrees power efficiency up to 100% . In order to prevent short circuits, the positive and negative electrodes of the 18650 lithium-ion battery are separated. Therefore, the possibility of its short circuit has been reduced to the limit. You can add a protective panel to prevent the battery from being overcharged, which can extend the life of the battery. 7. Long service life The 18650 lithium ion battery has a long service life. The cycle life in normal use is more than 500 times that of ordinary batteries and more than twice that of ordinary batteries. 8. The capacity of a large-capacity 18650 lithium-ion battery is generally between 1200mah~3600mah, while the general battery capacity is only about 800. If the 18650 lithium-ion battery is combined with the 18650 lithium-ion battery pack, then the 18650 lithium-ion battery pack can be anything Break through 5000mah. 18650 lithium ion battery application energy storage: 18650 lithium ion battery is mainly used for base station power supply, clean energy storage, grid energy storage, home optical storage system, etc. Power rating: 18650 lithium ion battery mainly refers to electric vehicles, electric bicycles, new energy vehicles, etc. Digital: 18650 lithium ion batteries are mainly used in mobile phones, tablet computers, notebook computers, electric toys, MP3/MP4, earphones, charging stations, model aircraft, mobile power supplies, etc. The above is the classification, advantages and application fields of 18650 lithium ion batteries. After 30 years of development, the 18650 lithium ion battery preparation technology has been very mature, the performance has been greatly improved, and the safety has also been greatly improved. In order to prevent the sealed metal casing from exploding, the 18650 battery now has a safety valve on the top, which is the standard and most important explosion barrier for every 18650 battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What impact does the cathode material have on the performance of lithium iron batteries?