That wil be a great safety hazard even more than a new nuclear power plant. The airspace full of potential nuclear bombs ? When the U-235 (with thousands of times more energy per kg than Jet-A1) reaches the critical mass when a plane crashes another Chernobyl accident might happen ?

Indeed, I am not the only one saying battery powered electric planes will not make it. Jet fuel is way denser.
That is why I am advocating synfuel: the non-fossil synthetic variant of jet fuel. Technically it is possible, but it requires mass production and much stricter laws regarding global warning by CO2 to make it feasible.