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CATL battery successfully powers electric plane with 1,800-mile civil aircraft expected (electrek.co)

submitted 4 months ago by schizoidman@lemmy.ml to c/technology@lemmy.world

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[–] WalnutLum@lemmy.ml 20 points 4 months ago (1 children)

I seriously doubt the viability of this, but I'm looking forward to being proven wrong.

[–] ColeSloth@discuss.tchncs.de 3 points 4 months ago (1 children)

Possibility for private planes, but none for commercial planes. Just imagine a commercial passenger plane or cargo plane that needed a giant amount of electricity and like 12 hours of charging in between every flight.

Then, for safety reasons you'll need to have two batteries in case one goes bad.

[–] Aux@lemmy.world 8 points 4 months ago (1 children)

You can simply do battery swaps. Plane refueling already requires heavy machinery and industrial scale. I bet battery swaps will be faster than refueling.

[–] TimeSquirrel@kbin.melroy.org 4 points 4 months ago (1 children)

And, no more tedious fuel calculations, just charge it all the way up, it doesn't add any extra weight to do so.

[–] jacksilver@lemmy.world 2 points 4 months ago (1 children)

Oddly enough I do actually think a charged battery is heavier, just as a full hard drive is heavier. But not to a degree that would matter.

https://toolsweek.com/do-batteries-weigh-more-when-charged/

[–] ColeSloth@discuss.tchncs.de 4 points 4 months ago (1 children)

That article you linked is utter trash, but it is correct about battery weight of a charged battery....technically....very technically....barely.

Like, a 4,000 mah lithium battery fully charged should weigh about 30 picograms more than when dead.

To put 30 picograms into perspective; a single 5 inch long human hair weighs around 0.04 grams. Well that's 40,000,000,000 picograms.

[–] jacksilver@lemmy.world 2 points 4 months ago

Haha, that's fair I didn't really vet the article as I've read about the concept and know it's true (although as you point out only on a technical level).