The world has too many nasty old cigarette butts. On the other hand, the world could use some supercapacitors, the high-tech replacements for batteries that could potentially charge in seconds. Scientists in South Korea have found a simple process to turn used cigarette filters into high-performing material that works better than graphene or carbon nanotubes in supercapacitors.
from Gizmodo http://ift.tt/1zRxyRT
via Gizmodo
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