Ugh ... you must have been sleeping during science class. Organtic electrolytes reduce the rate of charge/discharge by virtue of their inherent resistance. The nano-particles have GREATER SURFACE AREA, ergo by being teeny-tiny; they allow more and better contacts to the electrodes. This creates millions of parallel/series resistances; yielding an overal lower series resistance. This gives the battery a LOWER SERIES RESISTANCE.
The batteries internal series reistance is consists of the resistance of the electrodes, the ease at which the chemicals ionize, and the loss due to heating (by means of the chemical process).
When you charge your car battery, the battery does not charge instantly, you will see a limitation (based upon the charging voltage). Do some simple calculations (V=IR) and I'm certain you will figure out your battery's internal resistance. All batteries have them, it's unavoidable.
The quick charging has nothing to do with the internal resistance.
Before you flame, you may want to learn a little bit about this yourself. I'm an electrical engineer. I know what I'm talking about; you appear to be rude and haven't a clue what you are talking about. Series resistance DEFINES how much power the battery can pass during a charge and discharge. The charging internal resistance does not have to equal the discharging internal resistance; but they are pretty close (considering hysteresis losses and such). Internal resistance is not fixed, it varies with temperature and overall battery charge.
What I am saying is that a battery that can charge up to 80% in a minute, has a very low inherent series resistance. This also means that it can discharge about the same speed. Now, the battery may have a current flow regulator, that prevents this; but the battery itself can move a lot of current quickly. This makes this battery very unique, but also more dangerous than the conventional over the counter re-chargeable battery.
Also the internal resistance of Li-Ion batteries are lower than that of NiCad, NiMH, and lead acids already. You can get pretty rapid discharge from a raw cell, and most have some internal circuitry to prevent that from occuring.
This new battery sounds closer to the ultra capacitors that came out a few years back. Perhaps they'll have a better future.