No, but apparently capacitors of the order of 1000F or so can be made surprisingly small these days, through doing clever things with "rough" surfaces that have a high surface area. This sort of thing does turn out to possibly be useful in automotive applications. (I just came back from a meeting at an automotive research place that mentioned them.)
Well, that's a good question: I read your article before going to the meeting, so I asked. Apparently it would be quite a bang. (-:
Sure - but 1000F at what working voltage? High capacitance per se is NOT the goal of what Frank ("ferrguy") THINKS he's doing, but rather energy density. And thanks to the way that energy storage depends not on capacitance alone, but rather the amount of charge you can hold >>>at a given voltage meeting, so I asked. Apparently it would be quite a bang. (-:
There was a wonderful tale along these lines in George O. Smith's classic "Venus Equilateral" series of SF short stories, back in the
1940s. In one of these, an experimenter needed some unreasonably high capacitance for some reason or other, and promptly whipped up a new "super-dielectric" - that just happened to be a fluid. Our Hero comes across this set-up, with all the glassware that made up this "super-cap", does a quick calculation as to what would happen to the voltage across the thing should the dielectric leak out, and promptly orders it dismantled...:-)
I'm afraid I don't know - I know they could get a good few hundred amps out for a bit, at presumably some sensible voltage, and at least it was credible enough, from the point of view of their simulations and their knowledge of what could be made, that it seemed a useful thing to investigate, but I didn't ask at /what/ voltage. ):
If thats "Ferguy" don't waste your time. I think he's a troll. He has no propsals that make any sense and has had this explained to him many times. After a few weeks he's back to restart the same EER thread. He talks about making better capacitors that store energy using "inner space" whatever that is - he never explains.
Capacitors ARE being used to power prototype busses and vans in Japan (and the USA?), they have also been used as battery replacements for applications like starting diesel motors on trains - but Ferguy isn't interested in these. Try a web search on "super capacitors".
But of course, you never say HOW. Your whole "innerspace" idea is silly in the extreme, and CANNOT increase energy density, as has been shown to you many times. It increases CAPACITANCE, but at the expense of working voltage, for ANY dielectric. So you lose in the energy density. Get it? (He asks, utterly without hope of success...)
Using 18 x GP3300 NiMH cells you can make a battery which holds 132,000 Joules and weighs just over 1Kg. (1.1Kg to be precise). 132,000J is about as much energy as is released by 30 grams (one ounce) of TNT when it explodes.