Room temperature super conductors would be huge for the EV charging space. One big thing holding back EV transport trucks is charging capacity. The infrastructure to support charging a fleet of EV trucks at 1MW+ each is insane with current tech.

Even supporting a bank of 350KW chargers is pretty nuts like you see in some highway rest stops (or Tesla Supercharger stations). Locations are limited by the proximity to high voltage transmission lines right now (ie: it's really expensive to push that much current for any significant distance).

If we had cheap and ubiquitous super conductors that could be run like regular ole medium voltage electrical cables....game changer.

One also needs good connectors.