A good article about battery technology. They are testing the possibility of changing the membrane that separates the cathode and anode with a kevlar derivative, which is proving to be a safer option. The catch ... it is more expensive and the battery industry may not bite on it._____
"Over the years, millions of laptops and other gadgets from Dell, Lenovo, Sony and others have had to be recalled because of fire risk. In a handful of cases, smartphones and other devices have caught fire and exploded. And lithium-ion batteries caused problems in the new Boeing 787 Dreamliner."
Kevlar could keep lithium-ion batteries from catching fire | PCWorld:
'via Blog this'
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