this post was submitted on 14 Jan 2024
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[–] v81@lemmy.world 7 points 2 years ago

So you'd need 10,000 of them to generate 1 watt.

Sounds useless.

[–] aubeynarf@lemmynsfw.com 6 points 2 years ago

Betavoltaics have been around for 40+ years. https://en.m.wikipedia.org/wiki/Betavoltaic_device

This device generates microwatts. You’d need thousands of them in parallel to power a typical mobile phone.

[–] werefreeatlast@lemmy.world 4 points 2 years ago

Meanwhile the Voyager proves launched in 1977 are still live and kicking. Yeah one of them is getting pissy at us but it's still rolling.

[–] JoMomma@lemm.ee 2 points 2 years ago
[–] JohnDClay@sh.itjust.works 1 points 2 years ago (2 children)

What's the specific energy and power? If it isn't terrible, could be very good for things like spacecraft.

According to the article, it outputs 100 micro watts at 3 volts. Apparently for 50 years.

[–] MilderRichter@feddit.de 1 points 2 years ago

Deep space probes are already nuclear power sources.

Right now this is mostly a radio isotope heat source and a peltier device to convert the temperature differential to electricity.