What is the secret of repairing lithium batteries for electric vehicles

The service life of lithium batteries for electric vehicles is generally about 2-3 years, and beyond this point of time, there is no maintenance value; the general main faults of lithium batteries for electric vehicles include: loss of water, vulcanization, softening of the positive plate, short circuit, open circuit, drumming, etc.

The repair methods of lithium batteries for electric vehicles are as follows:

Loss of water: Open the rear cover on the battery of the battery car; open the vulcanized rubber cap to expose the vent; according to the vent, check whether the battery of the battery car is exhausted, and if necessary, carry out hydration.

In addition, it is proposed to use medical disposable injection needles and double distilled water, and the water must be carefully added before the actual operation is insufficient. Carry out a moisturizing and moisturizing for the battery car lithium battery that has been used for up to 4 months, which can increase the life of the battery, and the average extension time is more than 3 months. The lithium batteries pole piece becomes soft. The fault repair method: the battery is charged and discharged to 10.5V After that, charge and discharge the light bulb deeply for 1 to 5 hours. Then use the activity meter to restore the activity.

Sulfation: The vulcanized battery is repaired with Corti repair agent, and the fuzzy digital control theory is used to continuously emit positive and negative variable frequency particle waves while the battery is charging and discharging, and the hard lead sulfate after crystallization in the battery is removed within 10 to 20 hours;

The positive plate is softened: After discharging the battery to 10.5V, discharge it deeply with a bulb for 1-5 hours. Then use the activator to activate and repair;

Short circuit: The water battery can be clearly punched, and the short-circuited lead powder can be taken out; the battery of the electric vehicle can quickly short-circuit the positive and negative electrodes, and burn out and short-circuit;

Open circuit: 100A detects the battery voltage OV as an open circuit. Use a single measurement method and a multimeter to measure the open circuit. It can be solved preliminarily after welding.

Drumming: Generally, the bulging battery cannot be repaired. It is recommended to directly replace the new battery.

In addition, car owners should also pay attention to the maintenance of lithium batteries. When the electric bicycle starts, carries people, or goes uphill, it is best to use the pedal to help it avoid instantaneous high current discharge. The battery is deeply discharged every 1-3 months, which will extend the battery life.