Management of the battery management system, but as the use time increases, the heating rate, heating process, temperature maintenance time and cooling rate of the lithium battery pack will still have an impact on the performance of the lithium battery pack and the overall capacity of the lithium battery pack. Cumulative errors occur. Now that a battery management system is used, the performance of the lithium battery pack will still get worse with time. Does this mean that the battery management system is not of much use to the lithium battery pack? This understanding, At first glance, there seems to be nothing wrong with it. But we need to know that the battery management system of lithium battery UPS is actually just a protection function. If you want to solve the problem of performance degradation of lithium battery packs during use, you need to start with the overall design of the lithium battery pack and its component materials. A simple management system cannot solve the performance degradation problem of lithium battery packs, but this does not mean that the battery management system is useless. Although the management system cannot solve the problem of performance degradation, it can effectively slow down this process, which can be regarded as extending the service life and safety performance of the lithium battery pack in disguise. Definition of battery management system A battery management system is a system that manages batteries. It usually has the function of measuring battery voltage to prevent or avoid abnormal conditions such as battery over-discharge, over-charging, and over-temperature. With the development of technology, many functions have been gradually added. The object is usually a rechargeable secondary battery, and in recent years, it has mostly appeared together with a lithium-ion battery pack. On the one hand, the role of the battery management system is to detect, collect and preliminarily calculate the real-time status parameters of the battery, and control the on and off of the power supply circuit based on the comparison between the detected values and the allowed values; on the other hand, it reports the collected key data to the controller and receives The controller's instructions coordinate with other systems on the lithium battery UPS. Battery management system, different cell types often have different requirements for the management system. The advantage of the battery management system is that it protects individual lithium batteries or lithium battery packs from the influence of external power and prevents safety accidents during use of lithium batteries. Durability enables lithium batteries to operate in a reliable and safe area, extending the service life of lithium batteries. The demand is to maintain the lithium battery working in a state that meets the working requirements of the lithium battery UPS. Nowadays, the commercial lithium batteries produced must be connected to the management system, so that the lithium batteries can be effectively controlled and managed, so that the lithium batteries can work under appropriate conditions, and the safety, durability and power of the lithium batteries can be fully guaranteed. .

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