How to control the consistency of lithium batteries

At present, the industry generally uses battery management systems to control the consistency and safety of the batteries in the battery pack, thereby protecting the battery pack and extending the service life of the product. The use of battery management system (BMS) can realize the control of the relative consistency of the battery, so as to guard against the overcharge and overdischarge that may be caused during use due to the inconsistent battery, and relatively extend the service life of the battery pack. The battery management system with equalization function addresses the inconsistency of battery packs to a certain extent, and maximizes battery pack capacity and energy utilization. It can be seen from the decomposition of the test data that the battery pack with MBS is charged with a charging and discharging device or a charger, and the highest voltage is often in the initial stage of constant voltage charging. The initial minor voltage inconsistency of the batteries in the battery pack is an objective existence, although the initial voltage inconsistency is small, and a certain balance can be obtained during the constant voltage charging process, and the battery voltage inconsistency can be adjusted to a certain extent. However, in the long-term use, the inconsistency of the batteries in the battery pack will inevitably increase gradually under the catalysis of the temperature field and other aspects, which may cause the battery to be overcharged or over-discharged during the charging and discharging process. Of course, the battery pack management system also It will inevitably sacrifice the charge and discharge capacity of the score battery under the premise of ensuring safety to ensure consistency between batteries. When the battery pack with 50% unbalanced setting is charged with a charging and discharging device or a charger, when the charging enters a constant voltage or similar constant voltage stage, the batteries in the battery pack reach their own maximum voltage. At this time, the voltage between the batteries is also A certain degree of adjustment is obtained, but the charging device will overcharge the battery and the voltage will also be adjusted to a certain extent, but the charging device will cause the battery to overcharge and the voltage inconsistency adjustment ability is small, and the charger can not only guard against the single battery Overcharge is relatively clear for inconsistent balanced uses. 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: How to identify the battery of the smart sweeping robot