Views: 2 Author: Site Editor Publish Time: 2024-05-23 Origin: Site
Lithium battery BMS protection board is a circuit board designed to extend the service life of lithium batteries and protect their safety. Its function is to monitor the voltage, current, temperature and other parameters of the battery, achieving functions such as charge and discharge control, overcharge protection, over discharge protection, short circuit protection, etc.
In a lithium battery pack, multiple cells are connected in series to form a lithium battery pack. During the process of battery cell series connection, the number of series connections will affect the performance of the battery pack. Low string refers to connecting multiple battery cells in series in smaller quantities, such as 2 or 3 strings, which can effectively reduce the internal resistance of the battery pack, improve the output voltage and safety performance of the battery pack.
Due to the increase in the number of series connections, the internal resistance of the battery will also increase. Once a certain battery cell ages or is damaged, it will affect the performance of the entire battery pack and even cause safety accidents such as fires and explosions. Therefore, adopting a low series scheme can reduce the internal resistance of the battery, improve the output voltage and safety performance of the battery.
The implementation of low string needs to be carried out during the design and manufacturing stages of lithium battery packs. To adopt a low series scheme, it is necessary to select an appropriate number of battery cells during the design of the lithium battery pack, ensuring a small number of battery cells in series and matching the overall capacity of the battery pack; When manufacturing battery packs, strict quality testing and cell matching measures are required to ensure the safety performance of the battery pack.
This article introduces the concept and function of low string in lithium battery BMS protection boards, explains what low string is, why low string is needed, and how to achieve low string. Correctly selecting a low number of strings can reduce the resistance value of the battery pack, improve the output voltage and safety performance of the battery pack, thereby better protecting the battery's lifespan and safety. Meanwhile, in practical applications, manufacturing and use should be strictly carried out in accordance with design requirements to ensure the normal operation and safety performance of battery packs.
