But the point that CATL makes with this announce is that before this capacity boost, electric planes were a complete joke. Now, they are only somewhat funny.
What I am more excited about is that electrically pumped rockets are now a lot more practical. As an example, Electron is such a rocket ([1]). It can now reduce the weight of the battery pack and increase payload.
I have an imagined invention where battery packs drop off an electric jet as it cruises and they glide to a landing somewhere when they are out of power.
Nuclear waste can be stored on the Moon. Just be careful that it doesn't overheat and turn into a giant rocket, propelling the Moon out of the solar system.
Harbour Air successfully tested electric plane based on De Havilland Beaver. This is still a super short distance but I think the longest route Harbour air has is Vancouver <-> Seattle and it's a 55 minute flight.
I also think taking out the weight of the tank is unfair if you don’t add weight for the structures for holding the batteries.
But yes, for many smaller planes, we’re close to flying electric on shorter flights being economically feasible.