2 ms·
Charging speed is almost irrelevant for EVs. In the end you're limited by the amount of power you can push through a liquid cooled charging cable, and tradition
by audunw 10y ago
Charging speed is almost irrelevant for EVs. In the end you're limited by the amount of power you can push through a liquid cooled charging cable, and traditional batteries can almost certainly be engineered to handle that current.
Once you get to that level, further improvements will not be that interesting. Maybe we'll never reach ICE refueling speed. But with electric you can put a charging spot on every parking space in supermarkets etc, and people can just leave the car charging while they shop.
Energy density is the only thing that matters.
Good super capacitors have other great usecases though. But maybe not as sexy.
- nbadg 10y agoThis may be true at first glance, but if you try to incorporate more advanced EV features, and in particular, regenerative braking, you very quickly do need to care about maximum charge/discharge rates. Your brakes dissipate a great deal of energy very quickly; to resorb that back into usable potential is something that supercaps are exceptionally good at facilitating. That being said, in this case, you're likely best off using a supercap buffer between your batteries and the wheels, but that makes your power management and delivery systems substantially more complicated.