Introduce the working principle of lithium-ion battery protection circuit

Source: 2020 - 03 - 26 treasure hits: time introduces the working principle of lithium-ion battery protection circuit with the development of economy, the electronic products have entered the ordinary family. The application of electronic products demand more and more is also high. With the application of electronic products demand is higher and higher, people demand for lithium batteries more and more is also high. Lithium battery is a kind of relatively large battery power reserves, are widely used in various kinds of electronic products. In the market, however, some illegal businesses aimed at this, they are filled with a lot of fake batteries city, make consumers can not buy the real product. This kind of fake and shoddy lithium battery storage of serious quality accidents happened, these fake lithium batteries likely overcharge, over discharge, leading to explosion, is likely to happen internal short circuit, led to the explosion. However, an effective prevent the lithium battery overcharge, over discharge, and internal short circuit of the product is lithium battery protection board. Today, the master of architecture from the perspective of professional to explain the effect of lithium battery protection board. As we all know, people use lithium battery is actually made up of several small lithium batteries in parallel. They are some of the gap between internal lithium battery plastic panel in between. These little plastic board is actually a lithium battery protection board. In fact, lithium battery protection board is not made of plastic. It consists of a few pieces of not conductive fiber board coated with oil. As is known to all, oil is not conductive, that is why the lithium battery protection board can isolate multiple lithium-ion batteries, prevent short circuit. On the other hand, we talked about the lithium battery protection board also has the function of protection and avoid battery overcharge. When the battery by an external power supply continuous fast charging, lithium battery protection board has a protective effect. When the lithium battery internal power saturated, lithium battery protection board internal circuit external quick charge will automatically cut off power supply. The external power supply into the battery. This is the principle of lithium battery protection threatening the battery overcharge protection. We also went to the lithium battery protection board to protect the lithium battery, prevent the effect of lithium battery over discharge. Excess lithium battery discharging, lithium battery internal memory can produce qualitative change, the lithium battery protection board can perceive, quick disconnect the discharge power supply, led lithium battery not all electric version, to ensure the stability of the current lithium ion battery internal, avoids the lithium battery discharge.