Brief introduction to the structure and characteristics of 12V lithium battery

When the 12V lithium battery cell is overloaded, over-current, over-charged, or over-temperature, the protection board will automatically disconnect the power supply. It is a safety cover for lithium batteries. Once there is a problem with the protection board, there will be no guarantee when there is a problem with the battery, and it may burn or explode. Batteries: Batteries are equivalent to the core of a 12V lithium battery. There are many types of batteries and their performance characteristics vary greatly. Among them, lithium iron phosphate and polymer lithium batteries are used, which have the characteristics of long life, high safety, and no memory. The failure of lithium iron phosphate batteries is at most only burning and will not explode. Process technology: Process technology is the key to determining the quality of lithium batteries, and different manufacturers have different technologies. Under the same circumstances, inferior batteries are more likely to explode or burn. Counterfeit defectiveness is also an important factor in causing many lithium battery explosions, so you must choose a reliable manufacturer when buying 12V lithium batteries. Acupuncture: The damage caused by acupuncture to the battery cell cannot be repaired. The damaged part will cause a local short circuit and a large amount of heat, which will increase the internal temperature of the battery to the temperature at which the positive electrode is thermally decomposed, but at most it will cause the battery cell to burn. Explosion; Impact: When the lithium battery is impacted, the overvoltage loss on the electrode generates heat, which promotes the reaction between the solvent and the negative electrode, and the released heat further heats the battery, prompting the thermal decomposition reaction of the positive electrode to occur, resulting in out of control of the heat. Short circuit: A large amount of heat appears when the current passes through the battery, which heats the battery and raises the temperature of the battery to the temperature at which the positive electrode decomposes. The thermal decomposition of the positive electrode causes the heat of the battery to run out of control, thereby causing combustion or explosion. Ambient temperature: When the ambient temperature is too high, the inside of the battery is like a reaction chain, and the positive electrode material will also undergo thermal decomposition in such an environment. Under such a sealed condition, the battery cell will bulge and the pressure will burst to the limit. Disclaimer: Some pictures and contents of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the basic methods for the correct use of lithium battery electric vehicles?