Coin sized battery can last 50 years without recharge – coming in 2025
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Re: Coin sized battery can last 50 years without recharge – coming in 2025
#2100 microwatts isn’t much.
I’m curious how long other comparable batteries would last if you were only drawing 100 microwatts from them. I’m curious what you could run on that little power.
But I guess something a bit larger could probably be batteries in a smoke alarm, or other home security sensors? Idk how much power those draw but if it’s just making a WiFi ping sporadically it probably isnt much.
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#3100 microwatts isn’t much. I’m curious how long other comparable batteries would last if you were only drawing 100 microwatts from them. I’m curious what you could run on that little power. But I guess something a bit larger could probably be batteries in a smoke alarm, or other home security sensors? Idk how much power those draw but if it’s just making a WiFi ping sporadically it probably isnt much.
Good question. I think an array of these as cells in a series would bring it up to levels that could power an eInk display, etc that practically never needs additional batteries for its lifetime. Super cool.
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#4eevblog 1595
neither new nor useful
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#5eevblog 1595 neither new nor useful
https://www.youtube.com/watch?v=nEmO8DcOap4
More marketing bullshit form a company known for doing this.
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#6100 microwatts isn’t much. I’m curious how long other comparable batteries would last if you were only drawing 100 microwatts from them. I’m curious what you could run on that little power. But I guess something a bit larger could probably be batteries in a smoke alarm, or other home security sensors? Idk how much power those draw but if it’s just making a WiFi ping sporadically it probably isnt much.
> I’m curious how long other comparable batteries would last if you were only drawing 100 microwatts from them.
The article claims they have about 10 times the energy density of Li-Ion batteries. So assuming their numbers are correct, maybe 5 years.
Purely in terms of energy density, these are cool but they're quite a long way from "phone that never needs to be charged" territory. Maybe a phone would need to be charged every few weeks instead of every couple days...except these can't be recharged at all.
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#7100 microwatts isn’t much. I’m curious how long other comparable batteries would last if you were only drawing 100 microwatts from them. I’m curious what you could run on that little power. But I guess something a bit larger could probably be batteries in a smoke alarm, or other home security sensors? Idk how much power those draw but if it’s just making a WiFi ping sporadically it probably isnt much.
There’s also the self discharge aspect of things: cells lose energy even if you draw no current at all. This is dependent on many things including chemistry, quality, buildup, temperature and whatnot. I am not including lithium batteries (not bare cells) which need to have some kind of protection circuitry that also draws a bit of power.
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#8> Betavolt's battery sandwiches the radioactive nickel between two ultrathin plates of diamond,
What is the boundary for something to be called a plate of diamond vs a plate of carbon?
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#9> Betavolt's battery sandwiches the radioactive nickel between two ultrathin plates of diamond, What is the boundary for something to be called a plate of diamond vs a plate of carbon?
They are both carbon. It probably needs to be more than 1 atom thick before you would say this carbon is in the arrangement of diamond or graphite or ...
Here is a phase diagram
https://en.wikipedia.org/wiki/Diamond#/media/File:Carbon-pha...
Re: Coin sized battery can last 50 years without recharge – coming in 2025
#10100 microwatts isn’t much. I’m curious how long other comparable batteries would last if you were only drawing 100 microwatts from them. I’m curious what you could run on that little power. But I guess something a bit larger could probably be batteries in a smoke alarm, or other home security sensors? Idk how much power those draw but if it’s just making a WiFi ping sporadically it probably isnt much.
There’s also the self discharge aspect of things: cells lose energy even if you draw no current at all. This is dependent on many things including chemistry, quality, buildup, temperature and whatnot. I am not including lithium batteries (not bare cells) which need to have some kind of protection circuitry that also draws a bit of power.
It's not a chemical battery. The energy comes from the nuclear desintegration of radioactive nickel. So the charge is inmmune to most of the usual problems.
On the other hand, I don't know how strong are the layers that aborb the radiation and cretes the electricity.