With the advocacy of social energy conservation and environmental protection, more and more environmentally friendly products are applied to the market. In the battery industry, the ternary lithium battery quickly occupied the market with many advantages and gradually replaced the traditional lead -acid battery. For traditional batteries, the ternary lithium battery has the advantages of long life, no energy conservation and environmental protection, low maintenance costs, complete charging and discharge, light weight, and other advantages. It is always said that the three -yuan lithium battery life is long.
Trichous lithium battery life
The so -called lithium battery life means that after a period of time, the capacity attenuation is the nominal capacity (room temperature 25 ° C, standard atmospheric pressure, and 70%of the battery capacity of 0.2C discharge), which can be considered to end. The industry is generally calculated with the number of cycles full of lithium batteries in the industry. In the process of using, an irreversible electrochemical reaction will cause a decrease in capacity in the lithium battery. Essence Experiments indicate that a higher power discharge will cause a faster attenuation capacity. If the discharge current is low, the battery voltage will be close to the balanced voltage and can release more energy.
The theoretical life of the ternary lithium battery is about 800 cycles, which is medium in commercialized charging lithium batteries. Lithium iron phosphate is about 2000 times, while lithium titanium titanium is said to reach 10,000 cycles.
At present, the mainstream battery manufacturers promise to be greater than 500 times in their produced three -yuan battery cell specifications (charging discharge under standard conditions), but after the battery cell is made into a battery pack, the consistency problem is mainly voltage and internal internal internal It cannot be exactly the same, and its cycle life is about 400 times.
The manufacturer recommends that the SOC use window is 10%to 90%. It is not recommended to carry out deep charging and discharge, otherwise it will cause irreversible damage to the positive and negative electrode structure of the battery lithium. If it is calculated by shallow charging, the cycle life is at least 1,000 times. In addition, if lithium batteries often discharge at high mortivity and high temperature environment, the battery life will drop significantly to less than 200 times.