How many types of lithium batteries can be divided into?
There are several types of lithium batteries, how many types of lithium batteries can be divided? When we talk about battery-related knowledge, we should first introduce the classification of lithium batteries according to electrode materials and product appearance. Lithium batteries are classified according to: There are two commonly used classification methods in the sales market: according to the classification of electrode materials and according to the appearance of the product.
1. According to the classification of electrode materials
Battery cathode material: 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 Battery: lithium nickel cobalt manganese oxide battery (NCM), lithium nickel cobalt aluminate battery (NCA))
Anode material: lithium titanate battery (LTO), graphene battery, nano carbon fiber battery.
Sales market, the key to the graphene concept is the use of graphene-based rechargeable batteries, that is, adding graphene-based materials to polar TV dramas or adding graphene-based coatings to separators. There will be no basis for the sales market for lithium-nickel and magnesium-based rechargeable batteries.
2. Classification by product appearance
Divided into: cylinder, soft bag and square
Cylinder and square outer packaging are usually made of steel or aluminum. The outer packaging of the soft bag is aluminum-plastic film. In fact, the soft bag is also square. The aluminum-plastic packaging used in the sales market is called a soft bag. Some people call the soft bag battery a polymer lithium battery.
For Li-ion battery models, it is a common 5-digit specification. The first two digits are the direct and middle digits of the rechargeable battery. 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 batteries are used for liquid electrolytes (mainly for electric rechargeable batteries). Lithium polymer batteries are replaced by solid polymer electrolyte solutions, which can be dry or colloidal. Currently, most are polymer electrolyte solutions. For solid state batteries, the exact meaning is that the liquid level and electrolyte are solid.
4. Classification by battery performance
Output rechargeable and rechargeable batteries. Dynamic rechargeable batteries are characterized by high-efficiency energy relative density, the key of which is high-efficiency energy discharge. The output of lithium-ion power has increased with the advent of hybrid electric vehicles. It requires rechargeable batteries to store high kinetic energy and can be used in pure electric vehicles over a certain distance. It also has good output power characteristics and enters a hybrid mode of gasoline and electricity in low power consumption mode.
It is not difficult to understand that, similar to marathon runners, the type of kinetic energy with physical fitness is to adjust the charge and discharge characteristics of large capacity and high current; then the type of output power is sprinter, who has strong combat effectiveness, but has strong physical ability, or is in small Running very close to 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 a lot about lithium batteries.