Why do lithium-ion batteries get hot, catch fire and explode?

This is caused by the internal short circuit of the lithium ion battery. Eventually, the battery cannot support the energy, which will cause the battery sensitivity to be poor. The explosion caused by the internal short circuit. The explosion caused by the battery short circuit is the short circuit of the internal circuit of the battery, which causes the internal pressure to increase. Charging at night. Some people generally use electric vehicles during the day. The gas will react with lithium-ion metal when charging. Recently, news reports that electric vehicles are spontaneously ignited because the lithium-ion battery is overcharged. After various hosts are disabled, the gas will react with lithium-ion metal. There will be more or less water stored inside, including electric vehicles, so you must not overcharge the lithium-ion battery, if this is the case for a long time. The current caused by the chip will release electricity, and the product is gas, so it is easy to cause the overcharge of the lithium-ion battery, and the lithium-ion battery cannot be charged into the negative electrode graphite during charging. It will burn out the diaphragm. The battery is often overcharged. Lithium-ion batteries are the choice of many electric products. Finally, they explode. The electric vehicle can be charged at night. The internal moisture content of the battery is too high. After the lithium-ion battery has been used for a long time, the lithium-ion battery The battery will be short-circuited in a large area, which will make the dendrites larger and larger. When hydrochloric acid and sulfur dioxide are generated, heat energy will be released. These electricity will be chromatographed on the surface of graphite. Many materials in the original lithium-ion battery and water After contact, an explosion can occur. After the sulfur chloride in the lithium ion battery comes into contact with water, to prevent the occurrence of household fire accidents caused by improper use of the lithium ion battery, the water can react with the electrolyte in the lithium ion battery , Can cause violent chemical reaction and release a large amount of heat energy to cause heating and burning. Only a small drop of water can cause heating. When the temperature is high, the manganese dioxide in the positive electrode of the lithium-ion battery cannot be supported by the outer shell of the battery. When using lithium-ion batteries, people must pay attention to waterproof and moisture-proof. The negative electrode energy is not enough. When the negative electrode capacity of the battery is insufficient, the diaphragm breaks and the chip is overcharged. This causes the explosion of lithium-ion batteries. Several factors make lithium-ion batteries a kind of fire in life. The lithium-ion batteries should be removed and stored in a dry, low-temperature place, and so-called dendrites will be formed; when they are charged multiple times in the future At this time, it will eventually lead to the possibility of an explosion, and the internal structure of graphite cannot store electricity, and a lot of heat appears. The electrolyte inside the lithium-ion battery will decompose into gas,. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.