Re: Can lithium-ion batteries power an airplane? NASA's answer: Yes, indeed!

Dear Agoracom Family,

I want to thank all of you for your patience with us over the past 48 hours and apologize for what was admittedly a botched launch of our new site.

As you can see, we have reverted back to the previous version of the site while we address multiple forum functionality flaws that inexplicably made their way into the launch.

To this end:

1.We have identified 8 fundamental but easily fixable flaws that will be corrected in the coming week, so that you can continue to use the forums exactly as you've been accustomed to.

2.Additionally we will also be implementing a couple of design improvements to "tighten up" the look and feel of the forums.

Sincerely,

George et al

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Pavel

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Re: Can lithium-ion batteries power an airplane? NASA's answer: Yes, indeed!

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Re: Can lithium-ion batteries power an airplane? NASA's answer: Yes, indeed!

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okiedo

posted on May 07, 2022 02:33AM

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I have just scanned the article to see if there are some relevant facts. There are not, but I agree, that the issue is the battery. Given current technological progress around batteries, the “flying EV” is maybe feasible for small (1-3 passenger + pilot), private planes, but is still too heavy for any sort of commercial type of plane. While kerosene has energy density 42MJ/kg or 11,7kWh/kg, the battery cell used today has energy density 300Wh/kg. Challenger 600, consumes 260 gallons/1000l/800kg per hour. Hence we talk about 9,4 MWh, electricity engine would be maybe 20% more efficient, but still, that is lot of batteries to carry around for a plane. And here comes my regular “infrastructure argument”: how do they want to charge 5-10 planes like that at the same time?