As it turned out, the power supplies of numerous modern electronic devices have their weaknesses. The main one is the possibility of sudden ignition (for example, the sensational Galaxy Note 7s). Scientists have proposed several ways to solve this problem.
Some of them offer to find a replacement for the flammable electrolyte, others - to build in a smart chip that will prevent a possible fire. But researchers at Stanford University have developed a more radical method - a battery that extinguishes itself when suddenly heated. They managed to achieve this effect by introducing refractory microfibers of a triphenyl phosphate polymer made by the method of an electric spin into the battery housing.
Electrospinning is the process of producing ultrafine fibers under the action of an electric field that acts as a kind of "sieve". When the battery is operating normally, the microfiber protects the battery from electrolyte leakage. With a sharp increase in temperature above 160 ° C, the polymer shell melts and releases fibers into the electrolyte, thereby stopping the combustion process.