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DC fast charging often needs a commercial grid connection.
The J1772 plug is designed to handle up to 80 amps at 220v and most lithium batter packs can handle being charged that quickly if the charger that is connected to them can handle it.
Thing is there are a lot of EV owners who don't bother charging every day even because their car has way more range then they need, personally I like to charge every day or even twice per day because I like having full range all of the time but it takes 4 days to drive enough to use up my full range!
Being able to charge fast is a good novelty but the average EV isn't going to use it much if at all.
I also don't that a battery that has to be grown then dissolved away is going to hit production that can meet the needs of vehicle drive batteries, I think it's more likely to be used in small devices where someone doesn't mind paying $50 for a cell phone battery that can be charged in a few minutes.
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