The repair method of lithium battery

Authority lithium battery of three methods to repair

The common phone lithium batteries three methods of repair:

1, a clean eraser or other materials cleaning tool gently wipe lithium pool of metal contacts and metal contacts on the cell phone, Helps to maintain the state of charge and power.

2. The old mobile phone lithium battery that will be automatically shut down will be wrapped tightly with plastic wrap. When wrapping, try to serve as much as possible. There are three layers inside and outside to ensure that the battery is in a vacuum state. Then, the three-layer newspaper on the outside of the plastic wrap is used to completely seal the lithium battery. After being placed in the frozen layer of the refrigerator, after 48 hours, the battery was taken out, and the six-layer paper film wrapped outside was removed one by one. The lithium battery was not swollen or deformed due to freezing. After cooling for a while, then charge.

3. Discharge the lithium battery that is nearly scrapped and recharge it to activate the battery. The specific method is: deep discharge the mobile phone by exhausting the internal electric energy, to achieve a deeper degree of recharging, which requires some unconventional methods. Connect the phone to a low-voltage small light bulb with a specific device, and the internal power of the battery will be transferred to the small light bulb until it is completely illuminated. “The mobile phone needs to slowly run out of power through a lower voltage. Under normal circumstances, if the mobile phone is connected below the rated voltage of 3.6 volts, it will automatically shut down.” After the battery is discharged, the rechargeable battery can be used again.

Step / Method

1 Mobile phone lithium battery repair - "freezing therapy" process analysis:

2 The original lithium battery bought in April 2009 as the experimental object. The lithium battery has been used for nearly two years. In normal use, the standby time of this mobile phone is maintained for about one day. If there are more calls, the battery will last longer. If the average talk time per call is 3 minutes, answering or dialing 10 times, the power is in jeopardy.

3 Before the test, turn off the phone and turn it on after the battery is fully charged. After that, you don't need to answer and make any calls, and you don't send or receive text messages. In the state of no interference, the phone is quietly on standby, and there is no power at all after nearly 3 days.

4 Enter the experimental stage: Put the whole-equipped mobile phone lithium battery into the freezer compartment of the refrigerator (to prevent the lithium battery from getting wet, you need to wrap the mobile phone firmly with plastic wrap, and try to serve as much as possible when wrapping, there are three layers inside and outside. Make sure the lithium battery is under vacuum. Then, bake the three-layer newspaper outside the cling film to make the cell phone battery completely sealed. After 48 hours, the lithium battery was taken out, and the six-layer paper film wrapped outside was removed one by one, and the battery was not swollen or deformed due to freezing. After cooling for a while, load the lithium battery into the phone and turn it on. In the same situation, on the third day, the mobile phone that would have been automatically turned off will have one less power on the screen. A week later, there was still one extra cell on the phone screen. On the ninth day, the phone was alerted by a low battery.

The performance of the 5 "freeze therapy" test before and after verification verified that the first time the frozen battery can extend the waiting time of the mobile phone. However, freezing is not the "undead elixir" of mobile phone batteries, and long-term use will damage the lithium battery.

Precautions The

lithium battery has a cycle life of approximately 600 times. If the number of times of charging is increased, the thermal motion of the molecule will gradually destroy the internal molecular arrangement microstructure, and the storage charge efficiency will gradually decrease. The "freezing process is easy to damage the original internal structure of the battery, and may increase the capacity to charge the charge in a short period of time, but long-term use may not be effective." Professor Ye said that once the microstructure of the lithium battery is destroyed, it must be fully recovered. It is impossible, long-term use of this method will accelerate the loss of mobile phone batteries.

Experts reminded that the price of lithium batteries is not too high, and it is better to purchase a new battery to make it easier to cost-effective. In addition, developing good habits is also a shortcut to extend the life of lithium batteries.