About the dangers of lithium batteries during transportation

In the battery market, lithium batteries have quickly occupied the market due to their safety, light weight, low maintenance cost, no memory effect, complete charge and discharge, energy saving and environmental protection, and are gradually replacing traditional lead-acid batteries. Lithium batteries are divided into polymer lithium batteries, lithium iron phosphate batteries, ternary lithium batteries and so on. With its unparalleled advantages, lithium batteries are used more and more widely, and marketing has become internationalized. At the same time, lithium batteries are high-risk items. Therefore, transportation safety is more and more important. Rain water will easily have a greater impact on lithium batteries. We must pay more attention to the safe transportation of lithium battery goods. The dangers of lithium batteries are as follows: leakage: leakage external short circuit: external shortcircuit internal short circuit internal shortcircuit overcharge Overcharge forced discharge forceddischarge electrical safety Electrical Safety Leakage: leakage battery design and manufacturing process is poor or affected by the external environment such as UN38.3 In T1-T4 simulation. The battery may leak, and detection is used to ensure that the battery does not leak during transportation. The packaging requires transportation safety even if there is leakage. External short circuit: If an external short circuit occurs, it is also dangerous. The temperature of the lithium battery will rise very high, and even fire or explosion may occur. In UN38.3, T5 simulates an external short circuit of the battery. The lithium battery undergoes an external short circuit test after the harsh environment that may be encountered during T1-T4 transportation. It can be said to be the most severe condition. The lithium battery can meet the safety requirements under this condition. Coupled with the protection of the battery during transportation, such as packaging, this danger can be eliminated. Internal short circuit is mainly caused by poor battery diaphragm or small conductive particles entering and piercing the diaphragm during the processing of the battery, and lithium metal due to overcharging during use of the lithium battery. Internal short circuit is an important cause of fire and explosion of lithium batteries. Tests should be taken to change the design to reduce the risk of lithium batteries. 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: What are the effects of aging lithium battery packs on battery performance