EV battery
How is the life of the new energy vehicle ternary lithium battery
by:Vglory
2021-04-24
What is the lifespan of ternary lithium batteries for new energy vehicles? Ternary lithium batteries are also called ternary polymer lithium batteries, which refer to lithium batteries that use lithium nickel cobalt manganate or lithium nickel cobalt aluminate as the battery's positive electrode material. Ternary lithium batteries are widely used in new energy vehicles due to their small size, high volumetric relative density, and cold resistance. The service life of a ternary lithium battery has to be analyzed from two levels: the structure of the rechargeable battery and its critical use. The factors that determine the number of battery cycles are: lithium battery materials, the application of the natural environment and the best operating conditions. The service life of the lithium battery pack is determined by factors such as the structure and raw materials of the rechargeable battery. The current Sanyuanli rechargeable battery is a lithium battery made of ternary battery cathode materials. According to the specifications of rechargeable batteries, the service life of a ternary lithium battery lies in the frequency of the rechargeable battery's cycle system, and the volume of a ternary lithium battery will continue to decrease with the increase in the frequency of battery charging. Experimental results show that the ternary lithium battery is continuously charged with a 1C battery. After 1,000 battery charging cycles, the battery power is reduced to 80% of the new battery state. With the current technical strength of ternary lithium batteries, the volumetric relative density of power lithium batteries widely used in pure electric vehicles is 260Wh/kg. According to the calculation of this specific energy, it can reach 20,000 kilometers a year. According to the calculation of shallow charge and shallow discharge, the circulation system is used The life span is at least 1000 times. If used well, the battery car can last for at least 5 to 8 years. Irreversible electrochemical corrosion occurs inside the lithium battery, causing volume reduction, such as the dissolution of the electrolyte solution in the rechargeable battery, or even the degradation of the active material in the rechargeable battery, which can cause this situation. In addition, the service life of the rechargeable battery's cyclic system is related to the entire application process of the rechargeable battery. The technology of the ternary lithium battery is developing rapidly, in terms of its service life, and its service life is also constantly improving. The length of the service life of the battery car battery is very important. It lies in the application of the natural environment and application methods. Naturally, because of the many elements of daily life, especially when the rechargeable battery is used, because the battery charging, charging and discharging are not fixed, the rechargeable battery The service life can only be used as a reference. Between the two worry about the service life of the power lithium battery, it is not as good as the usual safe driving habit. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: The use of lithium battery diaphragm
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