What kind of harm will the voltage difference of the lithium battery of electric vehicles cause?

What are the hazards caused by the differential pressure of lithium batteries for electric vehicles? The advantages of lithium batteries such as cycle life, gram-capacity ratio, lightness, and no recall, have gradually replaced lead-acid batteries and are increasingly used in electric bicycles; however, Because lithium batteries are a new type of battery, many consumers or businesses know little about lithium batteries, so when lithium batteries have problems, the only way is to replace them, which greatly increases customer costs and forms social resources. Waste. I have more than ten years of processing-related experience in the lithium battery industry, and have repaired many lithium batteries. Through the accumulation of work-related experience, I have found an effective lithium battery repair method. Hope that through this simple analysis, more people can re-recognize lithium batteries. What is a lithium battery? The positive data of a lithium battery is lithium metal, and the positive data is a carbon material. According to the naming rules we are used to, we call this battery a lithium battery. There are many names for lithium batteries, such as from the data system, ternary lithium, lithium manganese, lithium iron phosphate; from the battery application can be divided into capacitor type, multiplier type, high multiplier type; divided from the use environment : High-temperature lithium electronics, low-temperature lithium batteries; distinguished from the appearance: steel shell, polymer, square, 18650, 26650 and other types are complex, we can not list them all here, let's talk about the application of lithium batteries in electric bicycles. At present, the lithium batteries used on electric bicycles include ternary lithium batteries and lithium iron phosphate batteries, 18650 cylinders and polymer soft bags, but the mainstream is 18650 ternary lithium cylinders. The operating voltage range of the ternary lithium battery is 2.5V to 4.2V, and the rated voltage is 3.6V. The lithium battery pack is based on the requirements of the voltage capacity. A large number of battery strings and combinations are formed. For example, a 2 Ah battery capacity, if required Combine it into a 36V/10a battery pack, and then request a sum of five, so the total demand for this string is 50,18650; lithium batteries are most afraid of overcharging and overdischarging, so the battery pack and the external multiplier circuit pass a maintenance circuit to limit The upper and lower limits of battery operating voltage. The multi-battery series has higher requirements for battery consistency, that is, the capacity, internal resistance and discharge channel of a single 18650 battery should be the same; but having said that, the world will never find the same two leaves, so it is absolutely necessary to make the same battery Impossible, we promise that there will be a certain gap, but the standards of each manufacturer are different, so the quality is also uneven. How great is the damage to battery consistency? For example, a 36V battery pack, due to various reasons, has reached the first 4.2v maintenance value during charging, the maintenance board charging function will be turned off, even if the voltage of other batteries is also It cannot be compensated under the capacity of 3.9v. When discharging, people with low capacity will first come to the minimum maintenance voltage value. Even if the battery capacity is not delayed, the maintenance board will turn off the discharge function. This is the short board effect! In this way, we should be able to understand that the pressure difference will form All the performance of the battery pack is mainly reflected in short-distance travel, cycling power, and unsatisfactory charging. So how to change the phenomenon caused by the battery pressure difference? In addition to choosing a good battery, the battery is consistently paired on the processed battery pack (the customer cannot decide)?? When the customer puts forward the phenomenon on the beloved car What we can only do is to repair the battery pressure difference, use the world energy and lithium battery pressure balance repair tool to balance the battery pressure difference, so as to restore the battery factory pressure difference state. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.