Introduction to the correct use of lithium-ion batteries

Correct use of lithium-ion batteries 1. Charge a new battery: When using lithium-ion batteries, it should be noted that the battery enters a dormant state after being left for a period of time. At this moment, the capacity is lower than the normal value, and the use time is also shortened. But the lithium ion battery is very simple to activate, only need to go through 35 normal charge and discharge cycles to activate the battery and restore normal capacity. Because of the characteristics of lithium-ion batteries, they have almost no memory effect. Therefore, the user does not need special methods and equipment during the activation process of the new lithium-ion battery. From the beginning, it is best to choose the standard method of charging, which is a natural activation method. Lithium-ion batteries or chargers will automatically stop charging after the battery is fully charged, and there is no such thing as a trickle charge that lasts for more than 10 hours as a nickel charger. In other words, if your lithium-ion battery is fully charged, it is also white charged on the charger. And none of us can ensure that the characteristics of the battery's charging and discharging maintenance circuit will never change and the quality is fully assured, so the battery will be on the verge of danger for a long time. This is another reason why we oppose long charging. In addition, on some machines, after charging for a certain period of time, assuming that the charger is not removed, the system will not only stop charging at this time, but also start a discharge-charge cycle. Perhaps the manufacturer of this approach has its own purpose, but it is obviously unfavorable for the battery life. At the same time, long-term charging needs to be carried out at night for a long time. According to the situation of my country's power grid, the voltage at night in many places is relatively high and fluctuates greatly. As mentioned earlier, lithium-ion batteries are very delicate, and their ability to withstand shocks in charging and discharging is much worse than that of nickel batteries, so this brings additional dangers. 2. When should the charging start in normal operation: Because the number of charging and discharging is limited, the lithium-ion battery should be used up as much as possible to recharge it. Regarding the lithium ion battery charge-discharge cycle experiment table, the data about the cycle life are listed as follows: Cycle life (10%DOD): '1000 times; Cycle life (100%DOD): '200 times. Among them, DOD is the abbreviation of Depth of Discharge. The number of charges is related to the depth of discharge, and the cycle life at 10% DOD is much longer than that at 100% DOD. Of course, assuming the relative total capacity of actual charging: 10%*1000u003d100, 100%*200u003d200, the latter is still better for thorough charging and discharging. Under normal conditions, there should be reservations according to the remaining battery. Recharge the battery after the battery is used up, but assuming that the battery cannot last the entire daytime on the second day, you should start charging in time. Of course, you assume that you are willing to carry the charger to the office. Charging is required to perfunctuate the upcoming important events that will lead to busy communication. Even when the battery has a lot of remaining power, then just charge it early, because it does not really lose the life of one charging cycle, that is, 0. That's just x times, and often this x will be very small. The criterion for recharging when the remaining battery power is used up is not to go to the extreme. As with long charging, a widely circulated saying is to use up the battery of the machine as much as possible, and it is best to use active shutdown. This approach is actually only the approach on nickel batteries, the purpose is to prevent the occurrence of the recall effect, unfortunately, it is also spread today on lithium-ion batteries. Once there was a case where someone still did not charge after showing a warning that the battery power of the machine was too low, and used it to shut down automatically. As a result, the machine in this example showed no response during subsequent charging and startup, and had to be sent to customer service for overhaul. In fact, this is because the battery voltage is too low due to over-discharge, so that it does not have normal charging and starting conditions. 3. To sum up the correct approach to lithium-ion batteries, my most important tips for charging and discharging lithium-ion batteries in use are: (1) Charge according to the specified time and procedure, even the first three times; (2) When the battery is too low, the charging should be started as soon as possible; (3) The activation of the lithium-ion battery does not require special methods, and the lithium-ion battery will be naturally activated during the normal operation of the machine. Does lead-acid battery have a memory effect? u200bu200bThe lead-acid battery of a battery car generally has no memory effect. Generally speaking, it is the simple memory effect of zincate nickel acid. The battery car battery is shown in the following figure: Definition: The electrode is mainly made of lead and its oxide, and the electrolyte is a kind of battery with sulfuric acid solution. English: Lead-acidbattery. Under discharge conditions, the primary component of the positive electrode is lead dioxide and the primary component of the negative electrode is lead; under charging conditions, the primary component of the positive and negative electrodes is lead sulfate. Divided into exhaust-type batteries and maintenance-free lead-acid batteries. The battery is mainly composed of tubular positive plate, negative plate, electrolyte, separator, battery tank, battery cover, pole, and liquid injection cover. The electrodes of the vented battery are made of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. The primary advantage is stable voltage and low price; the defect is low specific energy. 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.