Author ：Iflowpower – Portable Power Station Supplier
Most of the batteries used in small electrical equipment on the market are 18650 lithium-ion batteries. Since competition is violent, some manufacturers are not very good, often encountering battery failure. So 18650 battery failure What is the way? 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 the battery electrode, so that the battery and electricity equipment wire contact is not good, lithium ion battery The use time is shortened, and the rubber brown or other cleaning tool can remove the surface of the rust material, which can reduce the circuit resistance, improve the conductivity.
2, cold and heat alternating method repair 18650 lithium ion battery: low temperature can make the lithium ion battery inside The electrolyte changes, which prompted to have a chemical reaction that has just been frozen. The use of the lithium-ion battery is actually a charge and discharge process. During this period, the yin charge and Yang electric charge in the 18650 battery collide with each other.
Battery will It is 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, lithium ion battery surface The microstructure of the film and the electrolyte, and their intersection changes, 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 of recovery.
Lithium-ion battery More than 600 times. If the number of charging is more, the molecular thermal movement will gradually destroy their internal molecules, and the storage charge efficiency will gradually decrease. And "frozen process is easy to damage the original internal structure of the battery, perhaps in a short period of time It is possible to add the ability to charge the charge, but long-term use is not necessarily effective.
Once the microstructure in the 18650 lithium-ion battery is destroyed, it is impossible to completely recover, and use this method to accelerate the battery damage. 3, Deep discharge method repair battery: Depth discharge to mobile phones, is to achieve deeper recharge by depleting internal energy, this is to adopt some unconventional approach. Think about the 18650 battery with a 1.
5V small light bulb, lithium The amount of the ion battery is transmitted to the small bulb until all are light. The battery is slowly exhausted through the lower voltage. After the electricity is complete, the battery recharged can be used for a longer time.
4, high pressure charging Method repair battery: charging with a lithium ion battery high pressure charger (5V, 300mA) for 5 minutes, the charger can be a mobile phone charger, charging head, but cannot use universal charger, because the universal charger should identify the voltage, five minutes, The battery voltage V is detected again if the voltage rises to 1V, continuous charging (a measure of the voltage every 5 minutes). Charge to 3V, congratulations! Your battery can be charged with universal charge, universal charging this time you will identify your battery After passing the above, your battery is still unable to restore a certain use function, that is not a way, 18650 lithium-ion batteries are irreversible and broken, and the pen is changed.
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