What is the repair method after the 18650 failure?

2022/04/02

  Author :Iflowpower – Portable Power Station Supplier

1,18650 Lithium-ion battery surface has rust repair method: Long-term lithium ion battery's metal surface will have a certain degree of oxidation, resulting in rusting of the battery electrode, so that the battery and electricity equipment wire contact, lithium ion battery The use time is shortened, and the rubber brown or other cleaning tool can erase the rusty substance of the surface, and the circuit resistance can be reduced to increase the conductivity. 2, hot and cold alternating method repair 18650 lithium-ion battery: low temperature energy changes the electrolyte of the electrolyte inside the lithium ion battery to promote chemical reactions that have just passed through the frozen batteries. The use of lithium-ion batteries is actually a charge and discharge process.

During this period, the thermal charge and Yang charge in the 18650 battery collide with each other. The battery will be more increasingly not used, because in normal room temperature, the kinetic energy of the electronics is relatively large, so the battery is active, and the leakage is relatively frequent. The lithium-ion battery is placed in a low temperature environment, and the microstructure of the lithium film and the electrolyte surface of the lithium-ion battery, and the interior of their intersection, resulting in the interior of the battery, and the leakage current is reduced.

So after charging again, the battery capacity can restore a certain degree. The cycle life of the 18650 lithium ion battery is about 600 times. If the number of charge is more, the thermal movement of the molecule will gradually be destroyed in the internal molecules, and the storage charge efficiency will gradually decrease.

The refrigeration process is easy to damage the original internal structure of the battery, and may have a new charge capability in a short time, but long-term use is not necessarily effective. The microstructure in the 18650 lithium-ion battery is broken once it is destroyed, and it is impossible to completely recover, and this way to use this approach to accelerate the damage of the battery. 3, depth discharge method repair battery: Depth of the mobile phone is to achieve a deeper and reproduction by deepening internal energy, which will adopt some unconventional approach.

Though the 18650 battery is connected to a 1.5V small bulb, and the amount of power inside the lithium ion battery will be transmitted to the small bulb until all are light. The battery is slowly exhausted with a lower voltage.

After the electricity is complete, the battery recharged can be used longer. 4, high pressure charging method repair battery: charging with lithium ion battery high pressure charger (5V, 300mA) for 5 minutes, charger can be a mobile phone charger, charging head, but cannot use universal charger, because universal charger To identify the voltage, After five minutes, the battery voltage V is again detected, and if the voltage rises to 1V, continuous charging (one measurement voltage every 5 minutes). Charging to 3V, congratulations! Your battery can be charged with universal charge, universal charging this time you will identify your battery.

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