Recently, a video depicting a 'battery ejection test' for new energy vehicles has ignited widespread debate. The video captures a startling moment: the battery suddenly detaches from the bottom of the vehicle. This alarming scene has raised public concerns about vehicle safety. Today, a staff member from the China Automotive Collision Technology Research Center, who directly participated in the test project, has offered a comprehensive explanation.

This innovative technology is engineered to utilize sensors for monitoring. In the event of a severe collision or battery thermal runaway, it is designed to expel the battery pack from the vehicle within a mere second. This rapid ejection aims to avert potential fires or explosions within the vehicle. However, this design has not been without controversy. The ejected battery pack, which can weigh several hundred kilograms, poses a significant risk. After being ejected, it could potentially collide with other vehicles or pedestrians, especially in urban settings where the risk is particularly pronounced.

Moreover, the new national standard, slated for implementation in July 2026, explicitly mandates that power batteries must not catch fire or explode following thermal runaway. This requirement has cast further doubt on the necessity of battery ejection technology. At present, the industry is more inclined to tackle the safety issue by bolstering the inherent safety of the batteries themselves. This approach is exemplified by technologies such as BYD's Blade Battery and GAC Aion's Magazine Battery, both of which have achieved zero instances of spontaneous combustion in vehicles where they are installed.