What is the purpose of the lithium-ion battery management system (BMS)?

The lithium-ion battery management system has three important functions: 1. Accurately estimate the SOC: accurately estimate the state of charge (StateofCharge, or SOC) of the power lithium battery pack, that is, the remaining power, to ensure that the SOC is maintained within a reasonable range, and prevent excessive Charging or over-discharging damages the lithium-ion battery, and displays the remaining power of the battery at any time. 2. Dynamic monitoring: During the charging and discharging of lithium-ion batteries, the voltage and temperature of each battery in the battery pack, the charging and discharging current and the total voltage of the battery pack are collected in real time to prevent the battery from being overcharged or over-discharged. At the same time, it can reflect the battery status in time, select the problematic battery, and maintain the reliability and efficiency of the entire group of lithium-ion batteries, making it possible to realize the remaining power estimation model. 3. Balance between lithium-ion batteries: it is the balanced charging of single cells, so that each battery in the lithium-ion battery pack reaches a balanced and consistent state. Equalization technology is the key technology of a battery energy management system that is currently being researched and developed in the world. Under normal circumstances, the lithium-ion battery management system determines how to manage the battery pack through two parts, namely the detection module and the ortho acid control module. The realization of the detection module is relatively simple. It is important to collect the parameter information of the lithium-ion battery during use through the sensor, such as temperature, voltage and current of each battery cell, and voltage and current of the battery pack. These data will play a vital role in the subsequent battery pack management. It can be said that without these battery status data as support, the system management of lithium-ion batteries will be impossible to talk about. 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: Introduction to the performance characteristics of ternary lithium-ion batteries