Repair principle one: the metal surface of lithium battery used for a long time will have a certain degree of oxidation, resulting in bad contact between mobile phone battery and mobile phone, lithium battery use time becomes short, but with eraser or other cleaning tools can wipe the surface of the rusty material, let the battery and mobile phone contact better.
Repair principle two: low temperature can make the lithium battery internal electrolyte change, promote the battery has just been frozen chemical reaction. The use process of lithium battery is actually a charging and discharging process. During this time, the negative and positive charges in the battery collide with each other. Batteries become less and less useful because at normal room temperature there is more kinetic energy inside the electrons, so the batteries are active and leakage is relatively frequent. When a lithium battery is placed in a low temperature environment, the microstructure of the lithium membrane and electrolyte on the surface of the lithium battery, as well as their interface, will significantly change, leading to the temporary inactivity in the battery and the reduction of leakage current. So after recharging, the phone's waiting time will increase.
The recycling life of lithium batteries is about 600 times. If the charge is repeated for many times, the thermal motion of the molecule will gradually destroy the microstructure of the internal molecular arrangement, and the charge storage efficiency will gradually decrease. "The freezing process is easy to destroy the original internal structure of the battery, which may increase the charge capacity in the short term, but may not be effective in the long term." Once the microstructure inside a lithium battery is destroyed, it is impossible to recover completely, and long-term use of this method will accelerate the depletion of cell phone batteries.
