Lithium battery maintenance and new battery charging methods

The maintenance of lithium batteries, new battery charging methods, electric vehicles are becoming more and more high-end intelligent development. The research and manufacturing technology of electric vehicles continues to advance, and the manufacturing technology of electric vehicles is becoming more and more mature. When lithium batteries for electric bicycles are slowly becoming popular in the market, many people are still not very clear about the way to charge lithium batteries for electric bicycles. , I don’t know how to maintain it. Today, I will analyze the maintenance of lithium electric vehicles and new battery charging methods. 1. The charging method for new batteries. The activation of lithium batteries. This statement is an old topic. A large part of customers believe that battery activation needs. Almost all sales staff say that the first three rechargeable batteries are fully charged for 12 hours. Obviously from Nickel batteries, such as nickel-cadmium and nickel-metal hydride) vertically downward. So this statement can be said to be misinformation at the beginning. The charge and discharge characteristics of lithium batteries are very different from nickel batteries, and can tell us very clearly that all the serious official technical materials I have read emphasize that overcharges and overdischarge can cause great harm to lithium batteries. Especially liquid lithium batteries. So do you want to activate the battery? The answer is yes, to activate! However, the process is terminated by the manufacturer, not by the user, and the user does not have the ability to terminate. The real activation process is as follows: Lithium battery, the lithium battery case is filled with electrolyte and sealed, is charged at a constant voltage, and then discharged. After several cycles, the electrode is rich in the electrolyte and the energy is activated until it meets the requirements of the suspension capacity. The process of activating the content also said that after they left, the lithium battery was already activated in the hands of the user. In addition, at the same time, the activation process of some batteries requires the battery to be open, and after activation, it must be sealed. Unless you have battery processing equipment, how to end it? The battery is sold from the factory and then sold to the user. It will take a period of time, one month or In a few months, therefore, the electrode material of the battery will be passivated. It is recommended to use the battery's instructions for the first time. I do the best three complete filling processes. In order to eliminate passivation quickly, the electrode material can achieve the most effective. But this process does not take 12 hours. There should be many stations. Passivation can also be eliminated after normal use for a period of time. Therefore, the user is not a special method and equipment in the process of activating the new lithium battery. In addition, the lithium battery or charger automatically stops charging when the battery is fully charged. There is no trickle that lasts more than 10 hours when charging with a nickel coin charger. In other words, if your lithium battery is full, it will be charged for nothing if you put it on the charger. We can't guarantee that the characteristics of the battery's charge and discharge protection circuit will never change, and the quality will be guaranteed, so your battery is likely to be on the verge of danger for a long time. This is another reason against prolonged charging. On some machines, after charging for a period of time, it is assumed that the charger will not be removed. At this point, the system will not only stop charging, but also start a charge-discharge cycle. Manufacturers may have their own plans, but this is obviously bad news for battery life. At the same time, long-term charging requires a long time, and the demand is often carried out at night. However, according to the situation of my country's power grid, the voltage at night in many places is relatively high and fluctuates greatly. Having said that, lithium batteries are very fragile, and their ability to withstand fluctuations in charge and discharge is far less than that of nickel batteries, so there are additional risks. 2. Start charging during normal use. Since the number of charging and discharging is limited, lithium batteries should be charged with as little energy as possible. But I found a test table of lithium battery charge and discharge cycles. The cycle life data is as follows: cycle life (10%DOD):u003e1000 cycle life (100%DOD):u003e200 cycles, where DOD is the abbreviation of depth of discharge. It can be seen from the table that the chargeable time is related to the depth of discharge, and the cycle life of 10% DOD is much longer than that of 100% DOD. Assuming, of course, the reduction to the actual charging is related to the total capacity: *1000*200u003d200u003d100100%, and the charging is completed after 10%. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Knowledge about mobile phone battery charging and maintenance