Lithium battery manufacturers to analyze the number of times the lithium battery is charged and discharged? Generally determine the service life of lithium batteries is its charge cycle times, the so-called charge cycle times, refers to the lithium battery from a fully charged state to put the battery power down to 0, and then filled with the process. Whether it is a ternary lithium battery or lithium iron phosphate, if you take shallow discharge shallow charge, its service life will be much longer, the number of charge cycles of ternary lithium batteries can easily exceed 1000 times.
Lithium battery manufacturers to analyze the number of times the lithium battery is charged and discharged?
Often when it comes to the number of cycles of lithium batteries, basically, they will be linked to the "charging cycle", the two can actually be said to be the same meaning, you can say: the number of cycles of the battery is calculated by the cycle, you can also say the opposite that the lithium battery charging cycle is calculated by the number of cycles, both statements are not too much.
What is the charge cycle? A charge cycle refers to a complete charging and discharging process of lithium batteries, that is, when the battery uses the power to reach 100% of the battery capacity, that is, the completion of a charging cycle, but not necessarily through a charge to complete. This is a cognitive misconception of many people.
The life of a lithium battery is 500 charge cycles. How can it be counted as one charge/discharge cycle? A charge cycle means that all the power of the lithium battery from full to empty, and then from empty to full process, which is not the same as charging once. The so-called 500 times refers to the lithium battery manufacturers at a constant depth of discharge (80%) to achieve a chargeable number of about 625 times, reaching 500 charging cycles. Then an equation will be clearer: 625 × 80% = 500. (Ignore the lithium battery capacity reduction and other factors).
In practice, due to various influences in life, especially the depth of discharge when charging is not constant, so the "500 charging cycles" can only be considered a reference. Imported ternary lithium battery charge and discharge times can reach about 3000 times, the domestic is probably 800-1000 times.
The normal use of lithium batteries charge and discharge times up to 2000 times, lithium batteries have ternary lithium batteries, lithium iron batteries, lithium polymer batteries, each gap. The normal use of lead-acid batteries each charge and discharge times up to 500 times, such as flat liquid batteries, liquid-rich batteries, colloidal batteries, etc. vary.
The current power battery used in new energy vehicles is mainly ternary lithium batteries, lithium cobalt acid batteries, lithium iron phosphate batteries, no matter which type of battery, there is a service life, the life of the power battery is measured according to the number of cycles, the more times the charge and discharge, the battery life will be less. For the power battery cell cycle use number of national mandatory requirements must be more than 1000 times, lithium iron phosphate can generally do 2000 times, and ternary lithium batteries can generally be more than 1000 times.
Different batteries have different cycle life. Usually ternary lithium power battery cycle life in 1500 to 2000 times or so. So simply the number of charging does not affect the life of the battery. The life of the power battery will only be reduced according to the number of cycles. The number of charging does not directly determine the life of the power lithium battery, and multiple charging in a charge/discharge cycle can only be considered a cycle of battery wear and tear. Therefore, when we use electric vehicles, we do not need to worry about the number of times of charging and affect the service life of the lithium battery.
Summary: The above is all about how many times the charge and discharge of lithium batteries, if you have other questions welcome to contact us.
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