Comment I'm more concerned about safety of these, really (Score 1) 70
As someone who daily drives an EV and has done so for years, I'm obviously not overly paranoid about the battery fire issues out there. But the faster you charge a battery pack, the more heat gets generated. And the higher the battery pack's capacity, the more potential energy is contained inside it to cause a problem if it has a sudden failure.
While the same could be said about the potential energy in tanks of gasoline or diesel fuel? The challenge for EVs is that extinguishing battery fires is FAR more difficult to do. A number of race tracks have established a burn area to tow an EV with a battery fire to, so it can sit there as long as it needs to burn itself out. They don't even try to extinguish the fire. Clearly, that's not such a viable plan for a crowded interstate during rush hour.
I know there are a few experimental technologies out there, like the device a fire department can attach to the end of a hose, so it rolls under an EV and sprays water directly upwards, to cool a battery pack right above it. That's good stuff, but I'm not sure it's being adopted in the mainstream as quickly as battery pack capacities are increasing.