This lithium-ion battery of the future won't overheat
Researchers at Stanford University have developed a lithium-ion battery that shuts down as it begins to overheat, potentially meaning the types of catastrophic fires seen in hoverboards, laptops and airliners could become a thing of the past.
Lithium-ion batteries are used in just about all portable electronics. They’re light, can store a lot of energy and are easily recharged, but they are also susceptible to overheating if damaged. A short circuit in the battery often leads to fire.
In the new Stanford battery, researchers employed a polyethylene film that has embedded particles of nickel with nanoscale spikes. They coated the spikes with graphene, a conducting material, so that electricity can flow over the surface.