The lithium battery exploded, who was doing the trick?

The lithium battery exploded. Who will do this? Last but not least, as a result of this operation, many batteries were removed, good and bad, and still the kind of batteries that do not know whether they are good or bad. Seeing various situations, it is common for lithium batteries to catch fire due to operational errors (there is no way to protect the battery, do not disassemble it under high temperature and humidity). Back to the topic, let's talk about the explosion of lithium batteries from those nuclear bombs. The first thing to do is to figure out some theoretical content that you are not interested in, and then skip it. Lithium batteries, I think we should be more careful, they should be called lithium-ion secondary batteries. Li is the smallest diameter of the original periodic table of the elements, and it is also the most active metal. Please quietly put the memory of junior high school hydrogen, helium, lithium, beryllium, boron carbon Due to these characteristics, Nitroxide Neon is widely favored by intelligent scientists and engineers. However, this is also a double-edged sword. The violent oxidation reaction and explosion of lithium metal exposed to the air with oxygen in the air is also a problem with our pre-lithium at this stage. So when thinking about daily electrode materials, we usually use alloy materials and graphite to store lithium atoms. These materials serve as a small storage grid, lithium atoms lie in it, and the larger periodic table of molecules (beginning) can't get into it. , They will not attack the reaction, prevent blasting, and accomplish the purpose of safety. The working principle of lithium battery was also mentioned in my previous article, so I will not analyze it in detail here, just a simple analysis. When a lithium battery is charged, the lithium atoms in the positive electrode lose electrons and are oxidized into lithium ions. Lithium ions pass through the electrolyte to the negative electrode, where it enters the layered structure, gains an electron, and is reduced to lithium atoms. When the discharge occurs, the whole process is reversed. (This is the origin of the rocker battery) In order to prevent a short circuit caused by direct contact between the positive electrode and the negative electrode of the battery, a gap with many small holes is added to the battery to prevent short circuit. A good barrier can also actively close the pores when the battery temperature is too high, so that lithium ions cannot pass through, so as to waste time and prevent the risk of attack. Common reasons for blasting 1. The raw materials and incoming materials have serious quality problems, among which the quality of the electrolyte is the most important. 2. The electrode absorbs moisture, the moisture reacts with the electrolyte, and a lot of gas and heat appear; 3. The liquid injection is small, the charge and discharge resistance is large, which affects the lithium ion transmission; 4. The cover plate welding and sealing process is poor, and the sealing performance is poor. Air leakage, external water vapor ingress; 5. Internal micro short circuit, first of all dust burrs, mostly from extremely cutting materials and tool burrs; Statement: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete the previous one Article: Causes and hazards of inconsistency in lithium battery packs