18650 lithium ion battery pack battery repair method and principle

1. The metal surface of the 18650 lithium ion battery pack battery used for a long time will be oxidized to a certain extent, resulting in poor contact between the mobile phone battery and the mobile phone, and the use time of the lithium ion battery is shortened. The rusty material on the surface makes the contact between the battery and the phone better. 2. The low temperature can change the electrolyte inside the lithium-ion battery pack and promote the chemical reaction of the battery that has just been frozen. The use process of lithium ion batteries is actually a charge and discharge process. During this period, the negative and positive charges in the battery collide with each other. When a lithium-ion battery is placed in a low-temperature environment, the microstructure of the lithium film and electrolyte on the surface of the lithium-ion battery, as well as their interface, will change significantly, resulting in temporary inactivity inside the battery and reduced leakage current. So after recharging, the standby time of the phone will increase. The cycle life of the lithium-ion battery pack is about 600 times. If the number of charging is increased, the thermal movement of the molecules will gradually destroy the internal molecular arrangement and microstructure, and the storage charge efficiency will gradually decrease. 3. Deep discharge of the mobile phone is to achieve a deeper recharge by exhausting the internal electric energy, which requires some unconventional methods. The mobile phone slowly runs out of power through a lower voltage. Under normal circumstances, if the mobile phone is connected to the rated voltage of less than 3.6 volts, it will automatically shut down. After the battery is discharged, the recharged mobile phone battery can be used for a longer time. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.