There’s been lot of hype about graphene since it was first discovered and called a breakthrough. But we’re still waiting for the next big thing. That’s starting to change. A newly announced supercapacitor from Skeleton Technologies could make a big impact on the renewable energy market. Let’s revisit graphene, the supercapacitor, ultracapacitor, how it compares to lithium ion batteries, and when and where it’s going to start making an impact.