Safety characteristics of lithium batteries.

Safety characteristics of lithium batteries.

In order to ensure the safe and reliable use of lithium-ion batteries, experts have conducted very strict and meticulous battery safety design during the design process, in order to achieve battery safety assessment indicators and ensure the safe use of batteries.

Adopting internationally advanced Celgard2300PE-PP-PE three-layer composite film. When the battery temperature reaches 120 ℃, the PE film holes on both sides of the composite film close, the internal resistance of the battery increases, and the internal temperature of the battery slows down. When the battery temperature reaches 135 ℃, the PP film holes close, the internal circuit of the battery breaks, and the battery no longer heats up, ensuring the safety and reliability of the battery.

When the battery is overcharged and the voltage is higher than 4.2V, the electrolyte additives aggregate with other substances in the electrolyte, causing a significant increase in the internal resistance of the battery. This results in a large area of open circuit inside the battery, and the battery no longer heats up.

The battery cover adopts a scratch explosion-proof structure. When the battery is heated up, some of the gas generated during the activation process inside the battery expands, and the internal pressure of the battery increases. When the pressure reaches a certain level, the scratch ruptures and deflates.