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Researchers develop lithium-ion batteries with built-in fire extinguisher

Researchers from Stanford University have developed a lithium-ion battery that can extinguish fires within itself thanks to a built-in flame retardant material.

The study, which was published in the Science Advances Journal, explained that the flame retardant triphenyl phosphate (TPP) material is encapsulated inside a strong polymer membrane located in the highly flammable electrolyte fluid.

Once the battery temperature reaches 160 degrees Celcius, the team said that the flame retardant TPP material would be released into the electrolyte, thus preventing or extinguishing combustion.

In publishing their study, the researchers knew that battery safety issues associated with the use of highly flammable organic electrolytes remain a “big issue.”

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