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Vertically aligned carbon nanotubes triple the density of lithium batteries

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Re: Vertically aligned carbon nanotubes triple the density of lithium batteries

#161

Earlier quoted context omitted.

Yes, both USA and Soviet experimented with nuclear powered planes during the 60s. The problem was how to shield the pilots from radioactivity. https://en.wikipedia.org/wiki/Nuclear-powered_aircraft They also experimented with nuclear powered drones. https://www.popularmechanics.com/military/research/a33565112... And Russia now claims to have a nuclear engine that can make a cruise missile fly for days. https://en.wik…

What if there were a reactor type which would require no, or much less shielding because all it emits is mostly hard ultraviolet light? [0] https://en.wikipedia.org/wiki/Nuclear_lightbulb

I read that as using UV light to transfer energy to the working fluid, not that the actual nuclear reaction itself would be any different to any other nuclear reactor.

Re: Vertically aligned carbon nanotubes triple the density of lithium batteries

#162
post #161

Earlier quoted context omitted.

What if there were a reactor type which would require no, or much less shielding because all it emits is mostly hard ultraviolet light? [0] https://en.wikipedia.org/wiki/Nuclear_lightbulb

I read that as using UV light to transfer energy to the working fluid, not that the actual nuclear reaction itself would be any different to any other nuclear reactor.

Even when it reads "It would be operated at temperatures of up to 22,000°C where the vast majority of the electromagnetic emissions would be in the hard ultraviolet range." ?

edit: Sigh.. disregard, cf. https://web.archive.org/web/20080109011832/http://www.nuclea...

Re: Vertically aligned carbon nanotubes triple the density of lithium batteries

#163

Earlier quoted context omitted.

It increases the charging speed by reducing the heat produced while charging.

If it makes charging more efficient (less energy converted to heat, more stored) then it would improve the charge rate but not by 10x.

Charging rate is typically limited by thermals. If you drop heat by 10x you can bump charge speed by the same.
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