Is the theoretical life of a ternary lithium battery only moderate?

The theoretical life of a ternary lithium ion battery is only at a medium level. The service life of a ternary lithium ion battery is calculated based on its capacity attenuation ratio after use. When the capacity life is zero, stop using it directly. The professional algorithm is generally after three full discharges of the lithium-ion battery, which is called the cycle life. Irreversible chemical reactions in the use of lithium-ion batteries can cause a decrease in battery capacity, for example, in improper use, or at extremely high or low temperatures. For example, the differentiation of the electrolyte, the deactivation of the active material, and the collapse of the positive and negative structures lead to a decrease in the amount of lithium ions embedded and de-embedded. Experiments show that the higher the discharge rate, the faster the capacity drop, the smaller the discharge current, and the closer the battery voltage is to the equilibrium voltage, the greater the energy released. The theoretical life of a ternary lithium-ion battery is 1200 full charge and discharge cycles, that is, full cycle life. Depending on the operating frequency, even if the number of times of loss or discharge is reduced, the life of a ternary lithium-ion battery can reach 10 or 8 years. This means that this is the capacity life. After eight years, the capacity of the lithium-ion battery will exceed 60%. This is the norm. The theoretical life of ternary lithium-ion batteries is moderate for commercial rechargeable lithium-ion batteries. Lithium iron phosphate is about 2,000 times, and lithium titanate is said to reach 10,000 times. So far, mainstream battery manufacturers have promised to achieve more than 500 times the three-component battery specifications (charge and discharge under standard conditions), but the cycle life of the battery is about 400 times due to the same problem, mainly due to voltage and mutual use . Na resistance cannot be exactly the same. The manufacturer recommends that the SoC application window is 10% to 90%. Deep charging and discharging are not recommended. Otherwise, it will cause irreversible damage to the positive and negative structures of the battery. Assuming that the battery power is low, the cycle life is at least 1000 times. In addition, assuming that lithium-ion batteries are repeatedly discharged at high speeds and high temperatures, the battery life will be significantly reduced by less than 200 times. 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: Three hazards of electric vehicle battery modification