What are the reasons that affect the safety of lithium batteries?

1. Lithium batteries are absolutely harmful to the human body. The most harmful is the electrolyte solution. The electrolyte is an organic and volatile liquid, and it is obviously corrosive. Long-term inhalation of volatile gases can damage the respiratory tract. 2. If it is a battery cell, the contents of the battery are harmful to the human body. Harmful, it is not recommended to go, you must wear a gas mask or mask to work. I opened a battery cell ingredient barrel without knowing it, smoked it, and couldn't eat for a day. If it is made of PACK, it will basically have no effect on the body (individual workstations must be exposed to organic solvents), which is harmful ; 3. Radiation. The so-called radiation refers to the phenomenon of radio frequency waves emitted into space due to the high frequency oscillation of the circuit. Radiation of a certain frequency and intensity has an impact on the body. 4. The processing process of the lithium battery production line, and whether it will cause (gas, water and soil) pollution during the process. At the current stage of the lithium battery processing process, lithium batteries (Li-ion) will not be polluted by (toxic heavy metals) . Factors affecting the safety of lithium batteries 1) Internal factors The electrode materials and electrolytes of lithium batteries are flammable, and heat (internal or external) can cause fires and decompose to produce gas, thereby increasing the possibility of battery explosion. Moreover, the strength of today's polymer isolation membranes is relatively low, and this layer of membrane is easily damaged in the event of collision or overheating, resulting in a short circuit of the battery. At the same time, defects in the manufacturing process are also very easy to cause safety problems for lithium batteries. For example, the electrode tabs of the battery cell are too long and contact the pole pieces or the shell to cause a short circuit; the tabs compress the winding core, resulting in short circuit of the positive and negative electrodes; leaving metal powder, copper foil, aluminum foil fragments between the two poles may cause the diaphragm to perforate and then Cause a series of problems such as micro short circuit. 2) External factors The external factors that affect the safety of lithium batteries are relatively complicated, such as overcharging, external short circuit, and violent impact, which may cause spontaneous combustion 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 post: Comparative analysis of lithium batteries and lead-acid batteries