How many types of lithium batteries are there? When we talk about battery related knowledge, we should first introduce the classification of lithium batteries according to electrode materials and product appearance. The classification of lithium batteries is based on: there are two common classification methods in the sales market: according to the classification of electrode materials and according to the appearance of products.
1. According to the classification of electrode materials
Battery cathode materials: lithium iron phosphate battery (LFP), lithium cobalt oxide battery (LCO), lithium manganese oxide battery (LMO), (binary battery: lithium nickel manganese oxide lithium nickel cobalt oxide), (ternary battery: lithium nickel cobalt manganese oxide battery (NCM), lithium nickel cobalt aluminate battery (NCA))
Negative electrode materials: lithium titanate battery (LTO), graphene battery, carbon nanofiber battery.
In the market, the key to the concept of graphene is to use graphene based rechargeable batteries, that is, to add graphene based materials in polar TV dramas or graphene based coatings on diaphragms. The sales market of lithium nickel and magnesium based rechargeable batteries will have no foundation.
2. Classification by product appearance
It is divided into: cylinder, soft bag and square
Cylindrical and square outer packages are usually made of steel or aluminum. The outer package of the soft bag is aluminum plastic film. In fact, soft bags are also square. The aluminum plastic packaging used in the sales market is called soft bag. Some people call soft bag battery polymer lithium battery.
It is a universal 5-bit specification for lithium-ion battery models. The first two digits are the direct number and the middle number of the rechargeable battery. The enterprise is mm. For example, 186 lithium ions are 58 mm wide and 65 mm high.
3. According to the different electrolyte materials, lithium batteries are divided into liquid lithium batteries (LIB) and polymer lithium batteries (PLB)
Liquid lithium battery is used for liquid electrolyte (mainly for electric rechargeable battery). Polymer lithium battery is replaced by solid polymer electrolyte solution, which can be dry or colloidal. At present, most of them are polymer electrolyte solutions. For solid state battery, the exact meaning is that the liquid level and electrolyte are solid.
4. Classification according to battery performance
Output rechargeable battery and rechargeable battery. Dynamic rechargeable battery has the characteristics of high energy relative density, and its key is high energy discharge. The output power of lithium ion power increases with the emergence of hybrid electric vehicles. It requires rechargeable batteries to store high kinetic energy, which can be used for pure electric vehicles at a certain distance. It also has good output power characteristics, and enters the hybrid mode of oil and electricity in the low power consumption mode.
It is not difficult to understand that, similar to marathon athletes, the type of kinetic energy with physical strength is to regulate the charging and discharging characteristics of large capacity and large current; Then the type of output power is sprinter, with strong combat effectiveness, but strong physical ability, or running very close in a small capacity.
These are the four categories of lithium batteries. There are many kinds of batteries in the four categories. As long as you master the types, you will know about lithium batteries very well