As the other reply pointed out, without a huge(like 5x) improvement in energy density (specific energy, actually) of batteries, this is physically impossible. E

As the other reply pointed out, without a huge(like 5x) improvement in energy density (specific energy, actually) of batteries, this is physically impossible. Even with improvements, it would still be inefficient as batteries don't lose mass as they are used up - airliners can't even land with full fuel, they have to use it up, or dump it in an emergency situation. Using a process like this would essentially make the fuel simply a much better battery for airplanes than our batteries today.