Explosion-proof skills and methods of lithium batteries

1. Explosion-proof skills. Lithium batteries have become the first choice for portable electronic products. This type of battery has a high capacity density and a competitive price. It is expected that it will continue to be the mainstream of the market in the next few years. However, lithium batteries have always hidden the risk of blasting, because the use of more and more widespread, blasting incidents will be endless. At present, the skills of explosion-proof circuits and explosion-proof batteries have been experienced, and there should be fewer and fewer blasting incidents. Explosion-proof technology is a new type of battery product, which is made of materials with high safety factors to effectively prevent battery explosion. The safety feature of the explosion-proof lithium battery pack is its biggest feature. In order to ensure the safety of the lithium battery, we generally plan an explosion-proof valve on the battery case, which can be destroyed in time when the pressure is too high, release the internal pressure of the battery, and guard against the explosion of the lithium battery pack during thermal runaway. Because of improper use of lithium batteries, when the battery is overcharged or exhibits other failures, a large amount of gas will be generated inside the battery due to chemical reactions, which will cause the battery's internal pressure to increase rapidly and cause explosions. Therefore, in order to guard against such risks, batteries are generally equipped with explosion-proof equipment. 2. Explosion-proof method. When charging the lithium battery, the upper limit of the charging voltage and the lower limit of the discharging voltage must be set. The ideal values u200bu200bare 4.2V and 2.4V respectively, so that life, capacity and safety can be taken into account at the same time; other current upper limits are also very high. necessary. The best way is to have a plan for battery maintenance circuit boards. Although it will increase the manufacturing cost of lithium batteries, the safe use of lithium batteries is necessary. All regular lithium battery manufacturers cannot avoid this plan. The maintenance of lithium batteries should include three items: the upper limit of charging voltage, the lower limit of discharge voltage, and the upper limit of current. In general, in the lithium battery pack, in addition to the lithium battery core, there will be a maintenance board, this maintenance board is mainly to provide these three maintenance. However, these three maintenance items of the maintenance board are obviously not feasible. Global lithium battery explosion incidents are still frequent. To ensure the safety of the battery system, it is necessary to analyze the cause of the battery explosion more carefully. 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 post: Know the cause of the explosion of the lithium battery