- cross-posted to:
- hardware@lemmy.world
- cross-posted to:
- hardware@lemmy.world
You must log in or register to comment.
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.
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.
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.
It’s becoming quite rare to change the CR2032 on a PC motherboard these days. Even those tend to outlive the hardware.
These aren’t new.
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.
Are these ones ocean disposable like lead acid batteries?
These types of batteries are called wafer batteries because you just eat them
It’s wafer thin
Someone’s gotta charge the eels.
I was concerned about what happens when someone accidentally throws away a device with a fresh battery, but this:
The BV100 harnesses energy from the radioactive decay of its nickel-63 core. The two-micron thick core, sandwiched between two 10-micron thick diamond semiconductors
makes me feel a bit better. That really isn’t much radioactive material. Still, it’d be good to see some environmental impact studies done in some worst case scenarios.
It has to be. Making a big one is effectively impossible, the amount of shielding needed goes up much faster than the amount of radioactive material used.
I wonder if it’s a compatible replacement for a cr2032
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.
So you’re saying that if I buy about 500 million of these I can use them to charge my electric car?
Reminds me of Asimov’s Foundation.
searching Walmart website
Not yet.
The real market if this does hit actual shelves is whoever creates adapters for existing products.
Maybe for the 1-watt version they teased, but this one isn’t powering consumer-level anything.
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.
yay nuclearwaste for everybody 🥳
The radioactive nickel decays into stable copper and has a half life of 100 years. Not really ‘waste’
