Causes and consequences of short-circuits in lithium-ion batteries

Reasons for battery short circuit: 1. The component is damaged and the short circuit is often caused by insulation damage or careless wiring. For example, equipment insulation materials are aging, and equipment defects caused by poor design, manufacturing, installation, and maintenance develop into short circuits. 2. The influence of meteorological conditions, such as flickering discharge after lightning strikes, and the collapse of telegraph poles caused by the breakage of overhead lines and icing of wires due to wind disasters. 3. Man-made sabotage, such as when the worker pulls the switch on load, does not rule out the grounding wire closing and power supply when repairing the line or equipment, the misoperation of the operator, and the stealing of the wire. 4. Digging trenches for other reasons damages cables, and birds and animals are connected to bare current-carrying conductors. Three dangerous consequences of a lithium-ion battery short circuit 1. Leakage: When the temperature inside the lithium-ion battery rises slowly, the outer casing gradually melts, and the protective layer does not serve the purpose of protection, resulting in the leakage of corrosive electrolyte. 2. Explosion: The temperature in the body of the lithium ion battery rises quickly. Because the outer shell does not melt gradually when the temperature rises slowly, the internal space of the battery is not enough to contain the expanding gas under heating, and the battery container explodes due to excessive pressure. . 3. Spontaneous combustion: the spark from a short circuit will instantly ignite the electrolyte. This is because the electrolyte is composed of flammable liquid. The burning electrolyte will ignite the plastic body and cause the battery to burn. If there is flammable material around the battery It will cause a fire. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Introduction to the logo of lithium-ion battery cells