What are the repair methods for battery damage

A better way to eliminate vulcanization of batteries is to use the pulse repair method. When repairing the battery, the instantaneous voltage of the pulse is generally based on the function of the product, and the instant voltage taken is between 60V and 300V. For example, the pulse voltage value of the product used to extend the battery life is not too large. It is specially due to the pulse of the battery repair product. The voltage value can be too large (if the pulse voltage value is too large, it will cause damage to the battery plate), the pulse voltage is high, the battery repair time is short, the pulse voltage is low, the battery repair time is relatively long, although the pulse voltage is very high, but The uniform voltage is not high, it is not harmful to the human body, and it is very safe. In terms of solid physics, any insulating layer can be broken down at a sufficiently high voltage. Once the insulating layer is broken down, the coarse lead sulfate will assume a conductive state. If an instantaneous high voltage is applied to the high-resistivity insulation, large lead sulfate crystals can also be broken down. If the high voltage is short enough and the current is limited, the charging current will not be large under the condition that the insulating layer is penetrated, and a large amount of gas will not be formed. The battery has a strong gassing capacity. The positive phase is related to the charging current and charging time. If the pulse width is short enough and the duty cycle is large enough, the simultaneous micro-charging can be too late to form gassing under the condition of ensuring the breakdown of the coarse lead sulfate crystals. In this way, pulse elimination vulcanization is realized. Strong current repair method The strong current repair method is a method of repairing the battery with long-lasting high voltage or high current during charging, and it is mostly used when the effect of the pulse repair method is unclear. First, the high-voltage repair method: This method is important to repair the battery with a charging voltage 1.3-1.5 times the nominal voltage of the battery. For example, a 36V battery is charged with a 48V charger under the condition of the same or close to the charging current. , The charging time should be controlled and not too long, otherwise the battery will generate heat due to gas evolution. This method has a certain repair purpose for batteries with short circuit and low plate softening, but improper use can also cause damage to the pressure point of the battery plate. Second, the high current repair method: This method is important to take a charging current 1.5-2.0 times higher than the usual charging current to repair the battery, such as 20AH battery using a 3-4A charger for charging, pros and cons and high voltage repair method the same. Full charge and full discharge repair method The full charge and full discharge repair method is to repair the battery after the battery is completely overcharged and discharged. The full-charge and full-discharge repair method is important for repairing slightly damaged batteries. At the same time, this method can also effectively activate the deep active material of the battery and increase the capacity of the battery. Such as lightly vulcanized batteries, batteries with higher internal resistance, the key to this method is that the discharge must be sufficient, and each single battery must be fully discharged separately, full charge and full discharge 1-2 times, the capacity of the battery Generally can be improved. The full charge and full discharge repair method should not be used frequently, at least once every six months, and at most once every three months. The water replenishment method can repair the battery loss by replenishing water. The purpose is to dilute the increased concentration of sulfuric acid to carry out the electrolysis reaction normally. The water replenishment method is relatively simple, just open the battery cover, you can see that there are six round holes, inject a certain amount of distilled water into each round hole, and then soak for more than 24 hours. Water replenishment can only be supplemented with distilled water. Water with other ingredients, including purified water, cannot be added, because there are various metal molecules in the water of other ingredients, which will easily cause self-discharge and damage the battery after being added to the battery. Regrouping repair method Electric vehicle batteries are generally battery packs made up of several batteries connected in series. There are many aspects of battery damage, and there may be damage to the battery in several aspects at the same time: Regarding the vulcanized battery, the effect of use after repair is better. Good; but the battery with softened plates and partitions can be repaired immediately. Because of physical damage, the reusable value is of little value. The use time after repair is also very short, and the effect of repair will be even worse. The best way is to replace the battery with little repair value (replace it with an old battery with more than 80% capacity), and then regroup it with the remaining batteries. 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