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Stanford University Develop New Molecular Fire Extinguishers To Prevent Mobile Phone Battery Explosion
Mar 02, 2017

Are you worried that the smartphone battery will suddenly explode? Recently, Stanford University scientists have developed a new molecular fire extinguisher, it can prevent mobile phone lithium battery fire and explosion.


Scientists at Stanford University recently published a paper in the Journal of Science Progress in the United States that adding a substance called triphenyl phosphate (TPP) to the electrolyte solution of the cell can effectively block the combustion after the battery has been fired.


However, if the triphenyl phosphate is directly added to the electrolyte when the battery is manufactured, the safety of the battery can be reduced, but the charge of the battery can be reduced because the triphenyl phosphate suppresses the conductivity of the electrolyte.


Researchers have produced a "capsule" for this, with a micron-sized heat-sensitive polymer shell will triphenyl phosphate molecules which, and thus isolated from the electrolyte. When the battery temperature is too high, this heat-sensitive shell melting, which will release the triphenyl phosphate, play a role in flame retardant. The whole mechanism is like making a tiny fire extinguisher with triphenyl phosphate. After testing, the battery can be in the 0.4 seconds after the "fainted".


Lithium batteries are widely used in mobile phones and other electronic communications equipment, may be due to friction, impact, internal or external temperature is too high spontaneous combustion or even explosion. Therefore, scientists call this technology can be used to solve the mobile phone, laptop and electric vehicle battery security risks