Does fast charging damage the lithium-ion battery?

The essence of rapid charging and discharging of lithium batteries is that lithium ions can be quickly deintercalated between the positive and negative materials. The nature of battery materials, process design, and charging and discharging systems will all have an impact on the high-current charging function. Fast charging will input a large current into the battery instantaneously. Frequent use of the fast charging mode will reduce the battery's recovery ability and reduce the number of cycles of battery charging and discharging. Practice theory proves that fast charging is the most destructive to lithium batteries. The working principle of fast charging is: first add the voltage, and second, add the current at the time. Just like this, fast charging also uses this principle, so many current storage panels will have a speeding response. This kind of reaction will generate a lot of heat because of the internal resistance and the value that exceeds the limit temperature, which damages or prematurely ages the lithium battery. Fast charging only increases the input current within the agreed range. From this point of view, there should be no damage, but the heat of lithium battery is more serious than slow charging, and the serious heat of the battery may accelerate the aging, and it is slow from the author’s practice experience. The charging time is longer than that of fast charging. Slow charging is charging by plugging into the 220V AC outlet of the family. Because the battery cannot accept AC charging, the slow charging is to convert 220V AC to DC and then boost it to the charging voltage of the battery, such as 500V DC, and then use this A direct current of 500V charges the battery. In short, the quality requirements of fast charging related to lithium batteries are very high, and the response conditions of the battery under high current are too harsh and severe, which violates the equilibrium state and is far away, and the life of the battery has a large loss, and the safety factor will be significant. Decline, so do as little as possible when there is no need. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.