What are the repair methods and common faults of lithium batteries for electric vehicles?

1. Reconfiguration: After the entire battery is damaged, we often perform charge and discharge tests on the lithium batteries of electric vehicles. In the inspection, it is often found that 50% of the batteries in a battery are not damaged. The reason is that in the series-connected battery pack, individual batteries fall behind, resulting in a decline in the function of the entire battery pack, so that the function of the entire battery pack is reduced. 2. Replenishing water: Replenishing the lithium battery of the electric vehicle that has been used for about 4 months can extend the service life of the battery and extend the time evenly to more than 3 months. It should be noted that after each water replenishment, the battery is in an overcharged state to turn the battery from a quasi-lean liquid to a lean liquid state, and this overcharge is beneficial to increase the battery capacity. 3. Eliminate vulcanization: use battery repair equipment to eliminate vulcanization of the battery. 4. Particle generator: The particle generator is connected in parallel to the battery to repair the battery. This method is better for repairing lithium batteries in electric vehicles, but because the repair is relatively thorough, if there is no over-discharge, the possibility of battery vulcanization is often completely eliminated for the continued use of lithium batteries in electric vehicles. 5. Comprehensive repair methods for lithium batteries of electric vehicles: regular inspections are adopted for lithium batteries of electric vehicles, desulfurization and water replenishment are carried out in time, and single batteries are charged and reconfigured. The battery description, if it is maintenance-free, generally do not add water. If you want to add water, first test the electrolyte density of the electric vehicle battery itself, and select the corresponding concentration or non-concentration water to supplement according to different situations, so as to increase the battery capacity or extend the service life. What are the common faults of lithium batteries for electric vehicles? ●The electric vehicle has no display, the battery has no output, the battery cannot be charged, etc.; ●The lithium battery charger fails to charge or is not fully charged, the charger does not turn on, and the charging time becomes shorter or longer; ●Lithium battery The voltage is normal, the power is cut off when the riding distance is very short, and the riding resumes after a short period of time. The cycle appears to be good and bad; ●The lithium battery cannot work normally caused by the damage of the lithium battery protection board itself, and the battery protection board does not work. Some of the battery cells are damaged, etc. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the requirements for charging and discharging lithium-ion batteries?