The main defects of lithium batteries generally include: water loss, sulfurization, positive electrode softening, short circuit, open circuit, bulge and other defects. The repair method of lithium battery is as follows:
1. If the electric vehicle battery leaks water: Open the top cover of the electric vehicle battery and inject distilled water into the battery from the vent hole through the dropper. Pay attention to the principle of “less but not more” when injecting distilled water.
2. If the positive electrode of the electric vehicle battery is softened: After discharging the electric vehicle battery to 10.5V, use a light bulb to deeply discharge it for 1-5 hours, and then use an activator. to activate and repair it.
3. In the event of a short circuit in the electric vehicle battery:a hole can be drilled in the water battery and the short-circuited lead powder can be removed. Electric vehicle batteries can quickly short circuit the positive and negative electrodes and burn the shorted parts.
4. The electric vehicle battery has an open circuit: 100A detects that the battery voltage is 0V and has an open circuit. Use only one measurement method, use a multimeter to measure the open circuit, and then solder to solve the problem.
5. If the electric vehicle battery swells, simply repair the corresponding battery. If the extended battery cannot be repaired, it is recommended to replace it with a new one.
How to repair lithium-ion batteries of electric vehicles
Places to repair broken lithium batteries: China after-sales service center manufacturer, third party repair shop, product repair pointss electronics.
1. Manufacturer's after-sales service center
If the lithium battery is still within the warranty period, you can contact the lithium battery manufacturer's after-sales service center for repair or replacement according to the situation.
2. Third-party repair shop
You can try to go to a professional third-party repair shop for repairs, but you should choose a repair shop with a good reputation and guaranteed service quality to avoid improper repairs . Or the case of replacing inferior batteries.
3. Electronics repair points
In some large shopping centers or electronics outlets, there will also be specialized electronics repair points. You can consult them to see if they can repair lithium. batteries.
PrecaInstructions for using lithium batteries
1 Read the battery instructions carefully, use the recommended batteries, and operate according to the operating procedures.
2. Check whether the contacts of electrical devices and batteries are clean. If necessary, wipe them with a damp cloth, install them in the correct polarity direction.
3. Do not let children change batteries without adult supervision. Small batteries such as AAA should be kept out of reach of children.
4. Do not mix new and old batteries or batteries of different types, especially dry batteries and rechargeable batteries.
5. Do not attempt to regenerate the main battery by heating, charging or other methods to avoid danger.
6. Do not short-circuit the rechargeable battery, otherwise it will damage the battery and cause it to heat and burn.
Lithium batteries in electric vehicles are generally composed of at least ten lithium batteries connected in series, with built-in battery protection boards. They are completely different from lead acid batteries. In the event of a breakdown, no. -Professional technicians usually cannot solve.
Damage to the lithium battery of electric vehicles generally includes the following situations:
1. The battery plate Battery protection is damaged. Electronic components are densely packed and generally difficult to repair;
2. The battery protection panel is intact. If the performance of individual batteries deteriorates, it is not easy to repair. find ;
3. The battery protection board is intact. If some batteries are shorted, go check.
In short, after the panne of the lithium battery of the electric vehicle, maintenance