The Causes Of Thermal Runaway Of Lithium Batteries And Safety Precautions
Thermal runaway is the main cause of battery safety problems, so what causes thermal runaway of lithium batteries? First, the external factors of the battery. If the ambient temperature of the battery is too high, and the battery does not dissipate heat well, or the internal winding is poor, resulting in poor battery heat dissipation. In addition, companies need to pay special attention to another situation, that is, the battery spine is sometimes hot. The metal spine of the battery has copper and aluminum and has a relatively good thermal conductivity. For circuits in components with some high heat sources, it is important to ensure that they are kept away from the battery spine to adequately dissipate heat. Again, the internal factors of the battery. One is a micro-short circuit. There are two types of micro-short circuits. One is the short circuit in the battery production process, including burrs; the other is the use of the process in t...