Graphene Supercapacitors Ready For Electric Vehicle Energy Storage, Say Korean Engineers

Conventional batteries take so long to charge that they cannot efficiently store braking energy. But now graphene supercapacitors that store almost as much but charge in just 16 seconds could do the job instead.

http://www.technologyreview.com/view/521651/graphene-supercapacitors-ready-for-electric-vehicle-energy-storage-say-korean-engineers/?utm_campaign=newsletters&utm_source=newsletter-daily-all&utm_medium=email&utm_content=20131113