EV battery
How to use the lithium battery protection board correctly?
by:Vglory
2021-04-17
Battery processing manufacturers analyze how to use lithium battery protection board correctly? When it comes to lithium batteries, we have to mention the lithium battery protection board, because all the safety indicators of the lithium battery rely on the support of the lithium battery protection board. So do you know how to use the lithium battery protection board correctly? The following lithium battery manufacturers will teach you some basic knowledge of lithium battery protection boards. Lithium battery protection board has different circuits and parameters according to different ICs and voltages used. The reason why lithium battery (rechargeable type) needs to be protected is determined by its own characteristics. Because the material of the lithium battery itself determines that it cannot be overcharged, over-discharged, over-current, short-circuited, and ultra-high temperature charging and discharging, the lithium battery package will always appear with a delicate protection board and a current fuse. Battery processing manufacturers often see some friends on the Internet because they want to replace the battery or make a lithium battery by themselves, so as to combine the previous protection board with the new lithium battery, but afterwards they find that the newly combined lithium battery cannot It works normally, and there is another point. The safety of the lithium battery produced in this way is very low, and the lithium battery protection board in it is probably not used for protection. The purpose of the lithium battery protection board is to prevent a series of accidents such as short circuits, so the parameter requirements of the protection board are also extremely precise. Because its purpose is to ensure that the working current is kept within a reasonable range at all times, the workmanship of the lithium battery protection board must be very fine. This is why it is said that the protective plates worn by lithium batteries are in one-to-one correspondence. On the other hand, there are many types of lithium battery applications, including conventional, power, energy storage, etc., so the type of lithium battery protection board is also based on the type of lithium battery or lithium battery pack. To design. Therefore, different types of lithium batteries and protection boards cannot be mixed. In order to protect the life of the lithium battery pack, it is recommended that the battery charging voltage does not exceed 3.6v at any time, that is, the protection voltage of the lithium battery protection board is not higher than 3.6v, the equalization voltage is recommended 3.4v-3.5v, and the battery discharge protection voltage is generally 2.5v or more. can. In short, the lower the internal resistance of the lithium battery protection board, the better, and the lower it is, the less heating it is. The current limit of the protection board is determined by the constantan wire sampling resistance, but the continuous current capability is determined by the mos. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the advantages of lithium titanate batteries?
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