What are the classifications of lithium-ion batteries? What kind of lithium-ion battery cells are there?

What are the classifications of lithium-ion batteries? What kind of lithium-ion battery cells are there? According to the appearance of lithium-ion batteries: square lithium-ion batteries and cylindrical lithium-ion batteries; according to the lithium-ion battery outsourcing materials: aluminum-shell lithium-ion batteries, steel-shell lithium-ion batteries, soft pack batteries, etc. According to the different electrolyte materials used in lithium batteries, lithium batteries can be divided into two categories: liquid lithium batteries (LIB) and polymer lithium batteries. What are the classifications of lithium-ion batteries? Lithium ion batteries are generally divided into two categories: Lithium metal batteries: Lithium metal batteries generally use manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution. Lithium batteries: Lithium batteries generally use lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolyte. Usually, the power batteries we talk about the most are mainly lithium iron phosphate batteries, lithium manganate batteries, lithium cobalt oxide batteries, and ternary lithium ion batteries. What types of lithium-ion batteries are there? 1. According to internal materials, lithium-ion batteries are generally divided into two types of lithium metal batteries: lithium metal batteries generally use manganese dioxide as the positive electrode material, metal lithium or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution. Lithium batteries: Lithium batteries generally use lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolyte. Although the energy density of lithium metal batteries is high, theoretically it can reach 3860 watts/kg. However, due to its insufficient stability and inability to charge, it cannot be used as a power battery for repeated use. The lithium battery has been developed as the main power battery due to its ability to be recharged. However, due to the combination of different elements, the composition of the positive electrode materials differs greatly in various aspects, which has led to increased disputes over the route of the positive electrode material in the industry. Second, according to usage, the first one is digital lithium-ion batteries, which are our daily use of mobile phones, tablets, mobile power supplies, etc., which are all digital batteries. The second is the power lithium-ion battery, which is used by Tesla, BYD and some new energy electric vehicles, as well as drones and other products. These batteries require a large instantaneous current, and digital batteries cannot meet the instantaneous large current. Therefore, this type of battery is also called high-rate battery, which is more expensive than digital batteries. Third, the first category is divided into shell materials, steel shell batteries, as the name implies, the shell is made of steel. The second type, aluminum shell battery, similarly, the outer shell is made of aluminum. The third category, polymer lithium ion batteries, the outer shell is a polymer material, mostly silver, a few manufacturers make black, the industry has become black. Fourth, according to the shape of the first type, cylindrical batteries, this kind of battery is used a lot, like 18650, 26650, etc., this kind of general combination use, the combination of less can be used as digital products, like early notebook computers, generally 8 18650, mobile power, one to five or six combinations, there are more than 7000 series and parallel combinations of Tesla's 18650. The second type is square batteries. Most of these batteries are polymer batteries, because this polymer is very malleable and can be made into many shapes. The length, width and height can be adjusted at will. At present, most digital products use this type of battery. . The third type, abnormal-shaped batteries, are some weird-shaped batteries. According to the needs of the product, the battery must also have a matching shape, which is more popular than today's smart wearable products, such as smart bracelets, so the battery is also made into a ring. What kind of lithium-ion battery cells are there? There are currently three types of mobile power batteries on the market: 18650 batteries, polymer batteries, and lithium iron phosphate batteries. 18650 battery 18650 lithium battery refers to a battery with a diameter of 18mm and a length of 65mm, and 0 represents a cylindrical battery. The technology of the 18650 battery cell is relatively mature, the battery structure is stable, the specific capacity is high, the comprehensive performance is outstanding, and because of its small size, it can be used in many areas. The disadvantage is that its safety is worse than that of polymer lithium-ion batteries, and the number of cycles of the battery core is lower, about 300 times. The difference between polymer batteries and traditional lithium batteries lies in the processing technology. Lithium-ion batteries are wound and are relatively soft. The polymer is superimposed and has a harder body shape. With the same volume of polymer and lithium ion batteries, the capacity of the polymer is greater, about 30% higher. And it's safer, and the risk of explosion is small. long lasting. The charge and discharge reached more than 500 times. The disadvantage is that the cost is high. Polymer batteries with the same capacity are at least 100% more expensive than 18650 lithium ion batteries. The above is the classification of lithium-ion batteries and the types of lithium-ion battery cells. Different types of lithium-ion batteries have different performance. The six types of lithium-ion batteries include: lithium cobalt oxide, lithium manganate, lithium nickel cobalt manganate, lithium nickel cobalt aluminate, lithium iron phosphate, lithium titanate, and so on. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What kind of lithium ion battery is of the best quality?