A proton battery based on carbon rather than lithium will, if scaleable, be a real breakthrough for cheaper storage of electricity and management of a wind and solar oriented grid.
Why I am reading about this happening in Australia rather than 'Merica? I don't know but the Science Daily article on this topic has an interesting detail:
RMIT's research on the proton battery has been partly funded by the Australian Defence Science and Technology Group and the US Office of Naval Research Global.
Well, OK then. I still want thorium reactors.