Recently, for some reason, this story first published in January 2020 was again trending on social media (this appeared on my YouTube feed)But for a more quotable version, this version from The Independent) appeared in January:
NUCLEAR WASTE RECYCLED INTO DIAMOND BATTERIES WITH 'NEAR-INFINITE POWER'
One scientist from Bristol University who was involved with the project claimed in the article that:
"Eventually, a highly powerful version of a diamond battery could power a mobile phone," James Barker, from the University of Bristol's Faculty of Engineering, told The Independent.
The company website goes further, claiming that its technology will revolutionize batteries:
NDB can be used to further the electric vehicle revolution...
With NDB, every device you own, be it a smartphone or a laptop, can contain a miniature power generator, thus negating the need for constant charging...
And many other related claims.
The technology behind the claims involves capturing the energy released by the radioactive decay of carbon-14 derived from nuclear waste and turning it into electricity. So, strictly speaking, they are not "batteries" but an alternative source of power than is claimed to be able to replace batteries.
Are these claims remotely physically credible or total nonsense given the technology behind the batteries? For example, the firm claims they could power a mobile phone indefinitely: is that possible?