What are the repair methods for lithium battery packs and electric vehicle lithium battery packs?

Repair method of lithium battery pack ◆Discharging lithium battery pack can adopt the method of starting up and discharging or connecting resistance. The power-on discharge should be placed to the extent that the mobile phone stops immediately when the phone is turned on; the resistance discharge can be used to connect the small bulb of the corresponding voltage to discharge for a long time, until the small bulb is connected to the extent that it will go off instantly. The discharge current is preferably a large current. ◆Activate the 12V alternating current in series, and connect a small electric bead or resistor in series between the lithium battery packs for current limiting. First, use a small current to activate, make the control loop AC power to tens of milliamps, and maintain it for 30 to 60 minutes, and then increase the current to 1 to 2 times the nominal value of the battery. Repair method of lithium battery pack for electric vehicle 1. Regrouping: After the entire battery pack is damaged, we often carry out charge and discharge inspections on the lithium battery pack for electric vehicles. In the inspection, it is often found that 50% of the batteries in a set of batteries are unbalanced. No damage. The reason is that in the series-connected battery pack, individual batteries lag behind, resulting in a decline in the function of the entire battery, so that the function of the entire battery is reduced. 2. Water replenishment: Replenish the battery that has been used for about 4 months in the lithium battery pack of electric vehicles, which can extend the service life of the battery, and the extension time can reach more than 3 months on average. It should be noted that every time after water is refilled, the accumulator is in an overcharged state to turn the accumulator from a quasi-lean liquid to a lean liquid state, and this overcharge is beneficial to increase the battery capacity. 3. Eliminate sulfide: use battery repair equipment to eliminate sulfide on the battery. 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 article: Which application scenarios of lithium cobalt oxide batteries?