Coin-sized nuclear 3V battery with 50-year lifespan enters mass production

Comments

• ExcessShiv@lemmy.dbzer0.com ⁨12⁩ ⁨hours⁩ ago

  100 microwatts

  This is a very important spec to include…this battery can deliver 0.003mA of power, which is incredibly little.

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  • GamingChairModel@lemmy.world ⁨9⁩ ⁨hours⁩ ago

    this battery can deliver 0.03mA of power

    0.03mA of current. That times the 3 volts = 0.1 mW of power.

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    • frezik@midwest.social ⁨8⁩ ⁨hours⁩ ago

      Technology Connections, we need you to make another video.

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  • sugar_in_your_tea@sh.itjust.works ⁨12⁩ ⁨hours⁩ ago

    Should be plenty for watches and IOT devices.

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    • Blue_Morpho@lemmy.world ⁨12⁩ ⁨hours⁩ ago

      Google says a Casio watch needs .004mA so not quite enough.

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    • ExcessShiv@lemmy.dbzer0.com ⁨11⁩ ⁨hours⁩ ago

      Not really actually…

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  • reksas@sopuli.xyz ⁨12⁩ ⁨hours⁩ ago

    what kind of things could you power with that amount?

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    • KoboldCoterie@pawb.social ⁨12⁩ ⁨hours⁩ ago

      Almost nothing… Maybe some very basic scientific equipment, but they do note that they’d be able to use multiple batteries layered to produce higher output, and that they’re expecting to have a 1 watt version later this year; that’d be far more useful in practice.

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    • frezik@midwest.social ⁨8⁩ ⁨hours⁩ ago

      An RTC that you want to leave on its own for a very long time. Like underwater.

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• frezik@midwest.social ⁨8⁩ ⁨hours⁩ ago

  These aren’t new.

  youtu.be/nEmO8DcOap4

  They have tiny current output. Only suitable for a few niche applications. The company’s claim to fame is making them cheaper, but don’t expect much.

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• SoftestSapphic@lemmy.world ⁨9⁩ ⁨hours⁩ ago

  Are these ones ocean disposable like lead acid batteries?

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  • pHr34kY@lemmy.world ⁨5⁩ ⁨hours⁩ ago

    Someone’s gotta charge the eels.

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  • Glitterbomb@lemmy.world ⁨7⁩ ⁨hours⁩ ago

    These types of batteries are called wafer batteries because you just eat them

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    • SplashJackson@lemmy.ca ⁨5⁩ ⁨hours⁩ ago

      It’s wafer thin

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• KoboldCoterie@pawb.social ⁨12⁩ ⁨hours⁩ ago

  This is wild; the battery would outlive the electronics it’s powering in almost all cases.

  The output is incredibly tiny, but I wonder if it could be used to trickle-charge a higher-output battery for use in electronics that only need to be used infrequently for short durations.

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  • Blue_Morpho@lemmy.world ⁨12⁩ ⁨hours⁩ ago

    That was my immediate thought too. Hook it to a super capacitor. The only problem is the self discharge is probably higher than what the nuclear cell can feed.

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    • KoboldCoterie@pawb.social ⁨11⁩ ⁨hours⁩ ago

      That’s a good point; it becomes less economical if you need multiple of these cells just to counteract the self-discharge. Even so, it’s really just a demo of the technology; they do mention they expect to have a 1 watt model later this year.

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  • pHr34kY@lemmy.world ⁨5⁩ ⁨hours⁩ ago

    It’s becoming quite rare to change the CR2032 on a PC motherboard these days. Even those tend to outlive the hardware.

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• Toes@ani.social ⁨12⁩ ⁨hours⁩ ago

  I wonder if it’s a compatible replacement for a cr2032

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  • ExcessShiv@lemmy.dbzer0.com ⁨11⁩ ⁨hours⁩ ago

    Its not, power output is less than 1/1000th of what a cr2032 can deliver

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• rebelflesh@lemm.ee ⁨8⁩ ⁨hours⁩ ago

  Read the article guys, yes it is extremely low amperage how ever they are meant to be used in parallel, as you would expect, you use this right now in real life applications I don’t see the niche part but 5 cels the size of a nikle can power most iot micro nodes.

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• WheelcharArtist@lemmy.world ⁨10⁩ ⁨hours⁩ ago

  yay nuclearwaste for everybody 🥳

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  • Cephalotrocity@biglemmowski.win ⁨9⁩ ⁨hours⁩ ago

    The radioactive nickel decays into stable copper and has a half life of 100 years. Not really ‘waste’

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• TedDallas@programming.dev ⁨10⁩ ⁨hours⁩ ago

  So you’re saying that if I buy about 500 million of these I can use them to charge my electric car?

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• darklamer@lemmy.dbzer0.com ⁨11⁩ ⁨hours⁩ ago

  You had me at “nuclear”.

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  • sbv@sh.itjust.works ⁨10⁩ ⁨hours⁩ ago

    and “enters” ( ͡° ͜ʖ ͡° )

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  • Empricorn@feddit.nl ⁨10⁩ ⁨hours⁩ ago

    and “sized”.

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    • whaleross@lemmy.world ⁨10⁩ ⁨hours⁩ ago

      No “lifespan” people around?

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• shortwavesurfer@lemmy.zip ⁨11⁩ ⁨hours⁩ ago

  Damn. I had to look up the SI prefix scale to make sure i got this right. 100 microwatts would be 0.1 miliwatts. If they truly do end up releasing a 1 watt version of this battery, it would be fucking perfect for meshtastic nodes. Currently, the most common radios used in those nodes transmit at 22 dBm, which is about 150 milliwatts. In client mute mode, the radio by itself transmits one packet every six to eight minutes on average. A 1W battery should constantly run the node without ever having to charge it or, even if not, only have to charge it extremely rarely. I’m not sure how long it takes to actually transmit a packet, but assuming it takes a minute per packet, which I think would be incredibly unlikely, then it would transmit seven times per hour if it transmitted every five minutes and would use about 21.4 milliwatts. As efficient as the NRF-52 chip is, I suspect it is the thing that’s taking up most of the power.

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• lemmie689@lemmy.sdf.org ⁨10⁩ ⁨hours⁩ ago

  Image

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