A ternary lithium battery refers to a lithium battery with a ternary positive electrode material using lithium nickel cobalt manganese oxide (Li (NiCoMn) O2) or lithium nickel cobalt aluminum oxide as the positive electrode material. The ternary composite positive electrode material is made of nickel salt, cobalt salt, and manganese salt as raw materials, and the proportion of nickel, cobalt, and manganese can be adjusted according to actual needs. Batteries with ternary materials as the positive electrode have higher safety compared to lithium cobalt oxide batteries.

The advantages of ternary lithium batteries are mainly manifested in the following aspects:

1、 Better low-temperature discharge performance

Compared with other batteries, ternary batteries are more suitable for use at low temperatures, and low temperatures do not affect the performance of the battery. The minimum working temperature can reach minus 50 ℃, and in northern regions with lower temperatures, ternary lithium batteries can better play their role.

2、 Higher energy density

At present, according to relevant information, the energy density of the 18650 cylindrical battery made of ternary materials has reached 232Wh/kg, and will continue to increase to 293Wh/kg in the future. And with the three elements; Compared to lithium batteries, the energy density of lithium iron phosphate batteries is slightly inferior, only reaching around 150Wh/kg. Moreover, for some devices that use batteries, batteries with lower energy density not only occupy more space, but also have heavier weight, which greatly affects the battery's endurance during use. Relatively speaking, ternary lithium batteries will save more space than lithium iron phosphate batteries, while also solving the problem of excessive weight.

3、 Higher charging efficiency

In addition to its advantages in battery life, ternary lithium batteries also have certain advantages in charging. Compared with lithium iron phosphate batteries, ternary lithium batteries have higher charging efficiency. At present, there are two widely used charging methods: constant current charging and constant voltage charging. When starting to charge, constant current charging is usually used, where the current is higher and the charging efficiency is also higher. After constant current charging, the voltage inside the battery will reach a certain value, and it will enter the constant voltage charging stage. This charging method will make the battery more fully charged. In this charging process, the ratio of constant current charging capacity to total battery capacity is called constant current ratio, which is a key value for measuring the charging efficiency of a group of batteries. Compared to lithium iron phosphate batteries, ternary lithium batteries have a higher percentage, which means that their charging efficiency is higher.

In summary, ternary lithium batteries are a safe and reliable high-performance battery with good low-temperature discharge performance, high energy density, and high charging efficiency. They are widely used in electric vehicles, mobile devices, energy storage, and other fields.