...Why not just equip the cars with DC quick charge so you can fully charge the car in 20 minutes? That's what all the other car companies are doing.
Yes, but what % of full charge does that 20 minutes provide?
Overtime, the industry needs to migrate to standard modules that are interchangeable and work in parallel or series in a form of rank in the vehicle. Some vehicle racks would hold more modules than others, but the modules would be generic to a single standard.
The modules would not be sold as part of the car; only the right to draw x number of modules. They would continue to be owned by the manufacturers or national third party EV battery module companies. Service stations (or EV support stations) would have large multi-module charging racks so drivers could simply stop to swap for fully charged modules and be on their way.
That would move the Nation from carbon-based to fully electric vehicles far more quickly. If we don’t create the standards, China surely will, given its greater government control of industry sectors.