How many times is the life of a lithium-ion battery?

What is the lifespan of lithium-ion batteries? People are born, aging, sick, and die. The output and waste of lithium-ion batteries have declined. Li-ion batteries cannot be used again and have to be scrapped for one day. People call this phenomenon lithium Ion battery life. The limit of life is determined by a person from the day he was born, and this cannot be changed. However, can science determine that the extended length of people's daily life habits is within this limit; lithium-ion batteries have life limits because they are offline. Similarly, whether the use and maintenance of lithium-ion batteries is scientific also determines the extended length of lithium-ion batteries within the service life. This length is expressed by the charge and discharge cycle. Different types of lithium-ion batteries have different natural life spans (that is, theoretical charge-discharge cycles). For convenience, we use the most commonly used lithium-ion battery to illustrate this point. An argument that people often hear is that the life of a lithium-ion battery is 500. The principle time of a lithium-ion battery refers to the life cycle. This is a full charge and discharge cycle. The industry test method is: deep discharge x charge u003d cycle Life, the depth of discharge is 80% of the value, at least 625 charge and discharge times, 80%x625u003d500 (times). The depth of discharge refers to the ratio of the discharge capacity of the battery to the rated capacity. The reason for using 80% depth of discharge is that the depth of discharge is closely related to the charging life. If the depth of discharge is too large, the battery life will be shortened. When we use our mobile phone every day, when the mobile phone prompts that the battery is low, we start to charge the mobile phone. 500 cycles is the theoretical life of a lithium ion battery. Since people cannot fully pay attention to the problem of timely charging, under the test conditions, the theoretical life of the lithium-ion battery tested by the manufacturer from the production line may not be realized by your battery. Regarding your battery, actual charging time × depth of discharge u003d actual battery life. Once the concept of cycle life is clarified, we can distinguish it from the charging time and the charging life of the supplier/consumer. The number of rechargeable times marked on the appliance or battery is based on 80% of the depth of discharge. Therefore, some people think that the battery of a mobile phone must be discharged after 500 times. This idea is unscientific in theory, but it is wrong in practice. This will cause premature damage to the battery structure due to overcharge or overdischarge, shortening the service life of the lithium-ion battery. Another common phenomenon is that mobile phone manufacturers often use the battery for a few years, and the one-year warranty promises. This kind of promise actually comes from the battery manufacturer. As mentioned at the beginning of the article, how many years can use lithium-ion batteries, and close The correct way to use lithium-ion batteries, except for the provisions on the depth of discharge (ie. to prevent overcharging, and some factors that may affect the service life of lithium-ion batteries, such as the size of current and voltage, the ambient temperature, the maintenance of idle power, etc. It should be pointed out that the natural life of lithium-ion batteries ultimately has an upper limit. What we usually call the method of extending the life of lithium-ion batteries actually refers to the energy released by lithium-ion batteries through the correct use and maintenance of lithium-ion batteries. You can release more. Statement: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete the previous article: Important advantages and maintenance methods of lithium-ion batteries