Which factors will affect the service life of ternary lithium batteries?

What factors will affect the service life of ternary lithium batteries? Hydrogen Cloud Chain believes that this should be analyzed from the structure and use of the battery itself, such as battery materials, use environment and best working conditions. Specifically, in the process of use, due to improper use, irreversible electrochemical reactions will occur inside the lithium battery, resulting in a decrease in output, such as the decomposition of the electrolyte in the battery, and the loss of active materials in the battery's activity will directly lead to a sharp decline. The life of ternary lithium battery. Ternary lithium battery Of course, the end of the battery life of an electric vehicle does not mean that the battery cannot be charged and discharged, but that the discharge of the battery decreases more than the state of the new battery. If the battery continues to be used, it will give users a bad car experience. Since the life standard for power lithium-ion batteries was established a few years ago, when the battery was small and the cruising range of electric vehicles was also very short, less than 80% of the new battery, it felt that it was really much less. For example, the previous driving range was 200 kilometers, but the battery has decayed to 80%, and the 160 kilometers driving distance is about to be charged. Now that electric vehicles have a higher mileage, the 20% drop is not very large for the user's car experience. Regarding lithium iron phosphate battery packs, experts in the energy-saving electrical industry have conducted detailed studies on the factors affecting their low-temperature characteristics. The reasons are as follows: 1. Processing environment: Lithium iron phosphate battery pack is a high-tech product with many chemical raw materials and complex technology. The processing environment has higher requirements on temperature, humidity, and dust. If the control is not in place, the quality of the battery will fluctuate. 2. Lithium ion has poor conductivity and slow diffusion. When the charge and discharge rate is high, the actual volume is smaller than lithium iron phosphate. One of the important problems with lithium iron phosphate is that it has not been widely used. 3. Material influence: The conductivity of the lithium iron phosphate anode itself is poor, and it is easy to polarize and reduce capacity. Negative magnetic field is important for low-temperature charging, because it will affect safety issues; in the electrolyte, the viscosity increases at low temperatures, and the migration resistance of lithium ions increases. The fourth is the binder. Now batteries with low-temperature performance are relatively large. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to safely store lithium batteries?