Nature-inspired 'vine robot' reaches where firefighters cannot after battery facility blaze

When a fire broke out at a military battery storage facility in South Chungcheon Province in August, the building’s advanced fireproofing worked as designed. The reinforced concrete walls and automated sprinklers contained the blaze before the structure was lost. Yet that success created a perilous new crisis. Inside the facility sat roughly 210,000 unexploded lithium batteries. Scorched and baked by extreme heat, the remaining stockpiles lingered on the brink of secondary thermal runaway — a violent chain reaction capable of triggering massive explosions. Heavy treads or four-legged rescue robots, standard tools in modern disaster response, were far too heavy. A single misstep pressing against a delicate cell could detonate the entire room. For nearly two weeks, firefighters could only watch from the exterior perimeter. They were completely barred from entering the hazard zone. Battery safety has become an urgent national focus in Korea following a series of severe industrial fires. The risk was starkly highlighted in June 2024, when a thermal runaway explosion at a lithium battery