How long is the cycle life of energy storage lithium battery?

How long is the cycle life of lithium battery? The cycle times of lithium batteries are closely related to the service life of batteries. Each time a cycle is completed, the battery capacity will be reduced, and the service life of lithium battery will be reduced. So how long is the cycle life of energy storage lithium battery? In this article, I'll talk about battery life with you.
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How long is the cycle life of energy storage lithium battery?
There are many ways to store energy, lead-acid battery is one of them, but if we look at some specific fields, the time has come for lithium battery to replace lead-acid battery. Then why? A big reason is that the cycle life of lithium battery is longer than that of lead-acid battery and does not need maintenance.
Cycle life refers to how many times the battery can withstand charging and discharging before the battery capacity is reduced to a specified value under a certain charging and discharging system. The cycle life of a lithium battery represents the number of cycles of charging and discharging before the capacity of the battery drops to a certain level. According to the data, energy storage lithium batteries generally achieve a cycle life of more than 5000 times.
For lithium batteries used in the field of energy storage, the number of cycles is generally required to be greater than 3500, that is, the life demand of businesses for energy storage lithium batteries is greater than 10 years. The cycle times of lithium iron phosphate battery are much higher than those of lead-acid battery and ternary battery, and the cycle times can reach more than 7000 times.
Although the purchase price of lithium iron phosphate battery is two to three times that of lead-acid battery, the economic benefit is still much higher in the long run. In other words, if the cycle life of lithium iron phosphate battery is long enough, even if the initial purchase price is a little higher, it is still cost-effective as a whole.
In fact, the quality of energy storage lithium battery mainly depends on its material. Generally speaking, the service life of high-quality energy storage battery is very long, which can effectively reduce the cost of repair and maintenance and the overall investment of the system.
How to calculate the service life of energy storage lithium battery?
The national standard specifies the test conditions and requirements for the cycle life of lithium-ion batteries: charge for 150 minutes under the constant current and constant voltage 1C charging system at 25 ° C room temperature, and discharge to 2.75V under the constant current 1C discharging system as a cycle. When one discharge time is less than 36 minutes, the test ends, and the number of cycles must be greater than 300.
In fact, the recycling times of lithium-ion batteries are not only affected by different use modes of users, but also related to the production technology level and material formula of lithium-ion battery manufacturers.
The above is the explanation of the cycle life of the energy storage lithium battery. With the increase of service time, the life of the lithium battery will often be affected. The life of the lithium battery will be longer if the lithium battery is used reasonably and in the right way.