Safe & reliable lithium-ion battery

Stanford University scientists have developed the first lithium-ion battery that shuts down before overheating, then restarts immediately when the temperature cools. The new technology could prevent the kind of fires that have prompted recalls and bans on a wide range of battery-powered devices, from recliners and computers to navigation systems and hoverboards. In this video, Professor Zhenan Bao explains how this promising technique works.