安全，无小事，易点火及安全测试介绍

In the past, we often saw security incidents where the batteries of mobile phones and laptops were attacked. Now, these accidents have appeared in the use of lithium batteries. Although these safety accidents are relatively small compared with the scale of use of lithium batteries, they have aroused widespread concern in the industry and society.

当然，在这些情况下，锂电池起火的原因各不相同，有的甚至还没有确定。 一个更常见的原因是由电池短路引起的热失控，这可能会导致火灾。 所谓热故障，就是温度上升、系统上升、系统上升、系统上升、系统上升、系统上升、系统上升的循环。

If the lithium battery is overheated, the electrolyte will be electrolyzed, and then there will be gas, causing the internal pressure to rise, and Yanyan will break through the outer shell. At the same time, because the temperature is too high, the anodic oxidation reaction data attack launches metallic lithium. If the gas causes the shell to rupture, contact with the air will cause combustion, and the electrolyte will catch fire. The flame is strong, causing the gas to expand rapidly and explode.

For the safety of lithium batteries, stricter safety performance evaluation indicators have been published internationally. A qualified lithium battery has passed tests such as short circuit, abnormal charging, forced discharge, oscillation, impact, extrusion, temperature cycling, heating, high-altitude simulation, throwing, and ignition.

随着锂电池技术的发展和新的要求，相应的安全法规也在不断更新。

For example, the battery life requirements of emerging fields such as pure electric vehicle batteries. The battery life of traditional electrical appliances is expected to be 1 to 3 years, but electric car manufacturers hope that the battery life will reach 15 years. So, does the aging of lithium batteries bring safety risks? In order to explore the impact of battery aging on safety, UL conducted 50, 100, 200, 300, 350 and 400 for ordinary lithium batteries at two temperatures of 25 and 45 degrees. Sub-charge and discharge test.

此外，在787客机起火后不久，FFA就开始与业界合作研究锂电池的适航性。 在 787 重返天空之前，该规范已得到满足。