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that is the point of this post. They didn't go into energy density and the like, but that's just a matter of refining the electrolytes involved. I'm sure, as a first pass it's not terribly efficient, but the discharge rates should be excellent, given there's no membrane to create a junction potential that has to be overcome.

I'm no electrochemist - but do you think people would pour solutions into their cars? Granted, better than sitting at a recharge station, but might be tough for most people

They pour gasoline in them now. And that's a helluva lot more dangerous than a two-solution "solution" of water and immiscible organic solvent.... seriously, a lot less dangerous than gasoline.