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While diamond batteries are in principal possible, they remain one of the least well thought out, impractical, and massively oversold half baked ideas ever thrown out there by a reputable university as an ‘amazing new development’.

It requires you take some of the lowest level, easiest to store nuclear waste, and refine it into high level radioactive waste- then give it out to people as ‘batteries’ with one of the lowest power supply densities on the market.

It fails on almost every level. Their claims of making batteries using 14C as a power source seem to be based entirely on speculation. Further even if they can make them, their power supply density is going to be at least 10x lower than the 63 nickel prototypes. These prototypes would require kgs of battery, costing millions of dollars, merely to be able to trickle charge a mobile phone. If you could get this sort of power out of it, you are getting up into the territory of selling ‘dirty bomb’ kits. That alone for me isn’t a total deal breaker, after all we fuel our cars with exactly the same stuff they make fuel-air bombs from…. but lets just say it’s a concern!

The fact that in their video they ‘ask the public’ to come up with new uses for this battery reeks of a PR stunt. Lets be real, what real technological advance did scientists and engineers ‘ask the public’ to come out with potential uses for this MIND BLOWINGLY low power battery.

Betavoltaics are not a lost cause, but they are exceptionally limited. They are certainly not the amazing new discovery, and solution to nuclear waste that the University of Bristol was portraying them to be!

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NUCLEAR Diamond Battery: BUSTED!!

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Comments

Tony Hammitt

It seems like they're not going for isotopically pure 14C but were thinking they could get partially enriched graphite from the outsides of the moderator blocks. Probably not a high percentage, but cheap. Then, however, you lose most of the power density you could get with more expensive refinement. Maybe they could get a gram of 14C in a phone battery form factor, with a lot of luck. That only comes out to about 1 decay per second, so even if they could get all the energy out, it still wouldn't hardly be noticeable as a power source.

Anonymous

Hang on a sec, let me just... *puts on tin foil hat* why do THEY constantly claim there's some kind of super-battery just over the horizon when physics tells us it's impossible? What are THEY trying to cover up? *hats off* Seriously though, can we talk about what we can do given we're only ever going to get batteries about as good as we've presently got (at least on the same order) and just learn to live with that? Also, why do we never talk about how much energy goes into making these kinds of things? A positive EROI over 5000 years doesn't count, by the way. I know discussing current market prices for the materials is a good approximation of energy costs, but it seems like the commonly held idea about money in these kinds of fantasies is that it's just some arbitrary number that could easily be made zero by a more benevolent government or economy. Not the case! Nothing is free even by economic fiat, and the amount of energy put in to a gadget really matters when its purpose is to produce energy. I'm not even sold on photovoltaics (which, when you think about energy invested into making them, look more like overcomplicated batteries that need sunlight to operate).

Tony Hammitt

Apparently the energy it takes to make a PV cell can be paid back in about a year, according to the replies when I asked on Reddit. Super factual information source, I know, but it might be about right.

Steven J Greenfield

Why does the background music used in these crazy pitches always sound like it came from a TV show meant for toddlers?