China's EV system ejects batteries 20 feet away in case of extreme heat

A recent demonstration in China showcased an innovative electric vehicle (EV) safety system designed to address the rare but severe issue of battery fires. This system detects thermal runaway—a rapid, spreading ignition of battery cells—and ejects the entire battery pack from the vehicle within a second, propelling it 10 to 20 feet away. The concept aims to protect passengers by removing the burning battery from the car, simplifying firefighting efforts, which currently may require submerging the entire vehicle in water due to the intense heat and difficulty extinguishing such fires. While the system presents a novel approach to EV fire safety, it also raises significant concerns. Ejecting a heavy, burning battery pack poses risks to pedestrians, other vehicles, and nearby structures, potentially creating new hazards and liability issues. Consequently, automakers and suppliers have distanced themselves from the idea, and the technology remains at a proof-of-concept stage without regulatory approval. Despite mixed reactions from the media—ranging from cautious interest to skepticism—the