What are the advantages and disadvantages of ternary lithium batteries ?
The advantages of ternary lithium batteries are: smaller size, higher capacity density, low temperature resistance, better cycle performance, and are the mainstream of new energy passenger vehicles. Disadvantages: poor thermal stability, it will decompose at 250-300 ° C, and the chemical reaction of ternary lithium materials is particularly strong. Once the oxygen molecules are released, the electrolyte will burn rapidly under the action of high temperature, and then deflagration occurs.
What are the advantages and disadvantages of ternary lithium batteries ?
The advantages of ternary lithium batteries are: smaller size, higher capacity density, low temperature resistance, better cycle performance, and are the mainstream of new energy passenger vehicles. Disadvantages: poor thermal stability, it will decompose at 250-300 ° C, and the chemical reaction of ternary lithium materials is particularly strong. Once the oxygen molecules are released, the electrolyte will burn rapidly under the action of high temperature, and then deflagration occurs.
Ternary lithium battery, also known as "ternary lithium polymer", refers to a lithium battery with nickel cobalt manganate or nickel cobalt aluminate as the positive electrode material. Ternary lithium batteries are widely used in new energy vehicles due to their smaller size, higher capacity density, and low temperature resistance. For example, the well-known Tesla, all its models use ternary lithium batteries. Theoretically, the life of a ternary lithium battery is 2000 charge-discharge cycles, and if we count it as one charge a day, it can last for more than five years. However, in practice, there is a difference between use and theory. If 1000 cycles of charge and discharge are performed, in fact, the ternary lithium battery has been attenuated by 50%, which means that it can only run half of the original mileage after being fully charged. So how to avoid this situation? Charge it when you use it, and recharge it when it runs out. In addition, an excellent battery management system can also slow down the decay of ternary lithium batteries.
How long is the life of a ternary lithium battery ?
The theoretical life of the ternary lithium battery is 1200 times that of full charge and discharge, that is, the full cycle life. According to the frequency of use, charge and discharge once every three days, 120 times a year, and the service life of the ternary lithium battery is about 10 years. The service life of the battery is affected by various factors such as the driver's usage habits and daily maintenance, and the actual usage shall prevail.
Ternary lithium battery, also known as ternary lithium polymer, refers to a lithium battery with nickel cobalt manganate or nickel cobalt aluminate as the positive electrode material. Ternary lithium batteries are widely used in new energy vehicles due to their smaller size, higher capacity density, and low temperature resistance. For example, the well-known Tesla, all its models use ternary lithium batteries.
The service life of the ternary lithium battery is calculated according to the proportion of the capacity decay after a certain degree of use, and it is directly terminated until the capacity life is zero. The industry algorithm is generally that the ternary lithium battery is fully charged and discharged once, which is called the cycle life. During use, irreversible chemical reactions inside the lithium battery can lead to a decrease in battery capacity, such as improper use, or extremely high or low temperatures.
