3 ms·
Indeed, zinc air batteries (used in hearing aids) are more energy dense than lithium ion, and are cheap. Lithium air would be much better again (close to gasoli
by barrkel 3y ago
Indeed, zinc air batteries (used in hearing aids) are more energy dense than lithium ion, and are cheap. Lithium air would be much better again (close to gasoline) but a harder material to work with, and more expensive.
- dredmorbius 3y agoMetal-air batteries have the somewhat unusual property of gaining mass as they discharge (they fix oxygen from the air). How significant that mass gain is I'm uncertain of, but it confounds the diminished-mass-with-flight logic of fuel-based powerplants.
- jacquesm 3y agoIn one-way drones for once the less nice properties of Lithium Ion batteries would be an advantage.