3 ms·
> Betavolt said its first nuclear battery can deliver 100 microwatts of power and a voltage of 3V, while measuring 15x15x5 cubic millimetres, however it plans t
by lagniappe 3y ago
> Betavolt said its first nuclear battery can deliver 100 microwatts of power and a voltage of 3V, while measuring 15x15x5 cubic millimetres, however it plans to produce a battery with 1 watt of power by 2025.
Assuming either our device's power consumption drops, or this technology improves, or both, I'm curious what changes this could lead to. Also curious about what the equivalent of a punctured cell battery would be in this case.
- ben_w 3y agoWell, this was about 9.5 watts when it happened, of which ~40% was beta and the rest gamma: https://en.wikipedia.org/wiki/Goiânia_accident https://en.wikipedia.org/wiki/Goiânia_accident "About 94.6% decays by beta emission to a metastable nuclear isomer of barium: barium-137m … Barium-137m decays to the ground state by emission of photons having energy 0.6617 MeV": https://www.wolframalpha.com/input?i=%280.6617+MeV+%2B+0.5120+MeV%29+*+50.9e12+per+second https://www.wolframalpha.com/input?i=%280.6617+MeV+%2B+0.512...
- pfdietz 3y ago100 microwatts for 50 years at $.10/kWh is worth less than 1 cent.