Three main functions of lithium battery BMS battery management system

The BMS battery management system for lithium batteries is very important and is an indispensable configuration for lithium batteries. The BMS battery management system is commonly known as the battery protection board. It is the output and input port of the lithium battery. The BMS battery management system mainly manages the charge in and out of the battery pack. , Effectively manage the storage of batteries. The BMS management system mainly has the following three functions: 1. Guarantee the safety of the battery: during the battery charging and discharging process, real-time collection of the voltage and temperature of a single string of cells in the battery pack, charging and discharging current and the total voltage of the battery pack, to prevent the battery Overcharge or overdischarge occurs; 2. Accurately estimate the remaining battery capacity of the battery pack, and predict how much energy the battery has left or the state of charge of the energy storage battery at any time. There is a direct relationship between battery power and voltage, but it is not a linear relationship. You cannot rely on voltage to convert the remaining power. It must be calculated by BMS; 3. Balance between single cells: that is, single cells are charged in a balanced manner, so that the battery pack Each battery cell reaches a balanced state. Effectively prolong the service life of the battery. BMS technology is difficult, but the unit price is low and the market space is small. Actively balanced BMS products are post-cyclical. With the increase in service life, in order to maintain the endurance of power lithium batteries, the willingness to pay for active balanced BMS is expected to increase significantly. Batteries and BMS belong to two different industries, and battery factories do not have technical advantages in manufacturing BMS. Compared with the manufacturing cost of the whole vehicle, the cost of the BMS system accounts for a low proportion, and the choice of outsourcing is more conducive to cost control. With the accelerated expansion of power lithium battery companies, the importance of BMS has become increasingly prominent. BMS is more and more recognized for its core position in ensuring the safety and life of power lithium batteries. Due to the three functions of battery monitoring, SOC evaluation and voltage equalization, BMS has an irreplaceable core in ensuring the safety of power lithium batteries and improving battery life. status. 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 article: What kinds of batteries are in the energy storage system?