4 ms·
But the energy density per mass is still better than Li-ion batteries.
by funcDropShadow 6y ago
But the energy density per mass is still better than Li-ion batteries.
- nickik 6y agoLi-ion batteries are improving at a faster rate, and you can use your gravitational energy to recharge the battery.
- dmurray 6y agoHow does that work? You run your propellor in reverse like a wind turbine? This doesn't sound completely ridiculous but is there even any proof of concept for that? The gravitational potential energy doesn't seem all that high - most airplane fuel is burnt maintaining height, not gaining it - to justify the complexity of recovering some small fraction of it. Still, I once thought the same about regenerative braking in electric cars.
- 8note 6y agoHydrogen is a storage mechanism; there'd be a way to reclaim your energy either way