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I think we're more likely to get working Lithium Sulphur batteries first, which would effectively relegate fuel cells to the garbage can. Between the fuel and
by snovv_crash 7y ago
I think we're more likely to get working Lithium Sulphur batteries first, which would effectively relegate fuel cells to the garbage can.
Between the fuel and the cells, batteries are just so much easier to operate once they're out in the field, there's no comparison.
- Hypx 7y agoLithium sulfur still has a tiny fraction the energy density of hydrogen. It's very unlikely, probably impossible, to ever beat hydrogen on energy density with a battery. Also, Li-S still has too low of energy density for airplanes, and given the long recharge time problem batteries fundamentally are a no-go in aviation.
- snovv_crash 6y agoLiS is only 10x below gasoline. When you account for the difference in efficiency, and the the difference in weight for the motors, and then reliability and redundancy, it is roughly a factor of 2 away. That is fine for shorter routes. Recharging time isn't an issue, just have the batteries swappable.