Building Batteries That Stop Themselves Burning
Lithium-ion batteries are small, light, efficient—and can burst into flames. But a new fire-extinguishing design could make them safer. When a short circuit occurs in a li-on battery, flammable liquids inside can vaporize and burst into flames. Just ask Samsung. Last year, its Galaxy Note 7 smartphone was found to regularly catch fire, and new reports seem to confirm that it was the fault of the battery, rather than any other hardware problem. But researchers from Stanford University have devised a new way to solve the problem.