No, not at all. The battery in the article is still 30 times less energy dense by weight as jet fuel. And 10x less by volume. You’ll see synthetic sustainable biofuels and hydrogen way before batteries are in the sky.
95%+ of the energy in a battery directly converts to work. A typical jet engine is about 35% efficient. So the gap is smaller than it looks. More like 10X by weight and 3-4X by volume. Electric planes can regeneratively descend so that makes it a little better still.
Still this is why I said short to medium haul not long haul. But that’s more than half of aviation.
Batteries are already in the sky for commercial operation. So they're already viable for very short haul flights by existence proof. New battery tech just makes them more viable.
Still this is why I said short to medium haul not long haul. But that’s more than half of aviation.