Harvard team develops a new organic-based flow battery using quinone. It can be found in plants or synthesized from oil, and costs about $27 per kilowatt hour of storage capacity, compared with $700 for conventional metal batteries.
Between this and graphene it appears as though we are taking some significant leaps in sustainable battery storage. The question is, when will these technologies become the standard? What do you think it will take for us to truly push away from non-sustainable energy?