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Lithium battery protection system (BMS) can improve lithium battery consistency

by:dcfpower     2021-03-04
Power tools that use lithium-ion batteries as power sources are favored by people because of their green environmental protection, good cycle performance, high battery capacity, and long service life of the whole machine, and their technology is developing rapidly. More and more lithium battery tools have adopted battery packs connected in parallel and then in series to increase the overall capacity of the battery. After a series of series-parallel structures, the consistency of the battery has an important impact on the life and safety of the battery pack. Although battery packs are strictly screened for consistency, the capacity, safety, and lifespan of battery packs in series and parallel cannot be compared to a single battery. At present, the power tool 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 tool. The consistency of lithium battery pack production is a recognized problem in the industry. Although the relatively consistent battery is screened by voltage, internal resistance, range coefficient method, standard deviation coefficient method, and threshold method, after the batteries are grouped, the batteries in the battery pack Consistency is difficult to maintain, and its influencing factors are many, such as temperature field, battery polarization, and self-discharge. Therefore, the control of the battery consistency in the battery pack is extremely important. The battery management system (BMS) can achieve the control of the battery consistency, so as to avoid the overcharge and overdischarge that may be caused during use due to the inconsistency of the battery. The service life of the battery pack. The battery management system with equalization function alleviates the inconsistency of battery packs to a certain extent, and maximizes battery pack capacity and energy utilization. u003c/pu003e
At the same time, as the recent research of dcfpower shows, the benefits of improved productivity and firm performance can make implementing basic management practices worth it.
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