I know a few of us here are interested in batteries and we have talk about the technology in various threads, I've made this thread to help us explore the topic in its many forms.

Will start with this video and see where we go.

Just going to plonk this in:

Found this link. I know this is pie in the sky but their figures for super caps are very high.

Current tech is Maxwell at 6Wh/kg (Tesla batteries 230-248Wh/kg)

QuoteMany university R&D labs are getting around 50 Wh/kg using graphene.

Their goal is 250-350Wh/kg, which will beat batteries.

Even at 6Wh they're a good additional tech, at 50Wh they're an excellent add on.