First of all, it is necessary to understand the conventional types of common lithium batteries. New energy lithium batteries are mainly divided into two types.
The first lithium battery
To the domestic new energy (ATL battery), Bang Kai battery, Meibai, BIC, sunhe chaoyang and other representatives.
The material used in this kind of lithium battery is generally ternary, which has the advantages of large capacity and high energy density. Now the energy density of ternary battery is about 580Wh/ l, and the working voltage of lithium cobalt acid is generally 2.75V~4.2V, like the domestic new energy enterprise ATL, which is now doing 4.35V voltage system battery. The energy density can also be as high as around 650Wh/ l.
These batteries are commonly used in smartphones, tablets, laptops and Bluetooth headsets.
A tangle is there are many domestic manufacturers with ternary material will do more than 5 c discharge batteries, for example, amd, day, foster, the electric power supply enterprises such as battery, the battery can be used on the unicycle, thinking cars, electric motorcycle, its performance can meet the product requirements of customers, and accepted by the masses of users.
The second lithium iron phosphate battery
To the domestic BYD, Watma, AvIC lithium battery factory as a representative of the power battery enterprises.
The material used for this battery is lithium iron phosphate, referred to as iron battery, mainly known for safety and long cycle life, iron battery working voltage is generally between 2.3V ~3.65V, cycle life is as high as 2000 times, do good power battery enterprises, can extend the battery working voltage to between 2.0V~3.65V.
This kind of power cell is often used in electric buses, electric cars, electric forklifts and mobile stations.
Basic Knowledge: How to distinguish iron battery from lithium battery?
1, from the shape can not be identified, mainly to see the corresponding cell model specifications to see the discharge rate, the same battery can do iron battery, can also do three lithium battery.
2, can be identified from the battery appearance label, the normal cell factory has a "bar code" label, which contains a lot of information. But domestic also often bad cell manufacturer, do not have conscience bad thing, virtual mark, fraud.
Tip: The cell's energy density is calculated as follows.
Energy density (Wh/ L) = capacity × platform voltage ÷ volume ÷1000 (conversion unit)
Iron battery platform voltage: 3.2V; The platform voltage of ternary lithium battery is generally 3.7V.
Cylindrical volume = π R2; X h;
Rectangle volume = length × width × height
