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I really wish any of these companies creating super batteries that have a lot of capacity to actually market them. A laptop/phone that needs to be recharged ev

I really wish any of these companies creating super batteries that have a lot of capacity to actually market them. A laptop/phone that needs to be recharged every few weeks… heaven.

Youden 2y ago
This isn't nearly ready for phones or laptops. Its nominal characteristics are 1.5V, 100µAh capacity, 20µA discharge: https://www.tdk-electronics.tdk.com/download/2427688/a88e3aeab8be00d00fce586b0efec694/06-dl-ceracharge-presentation.pdf https://www.tdk-electronics.tdk.com/download/2427688/a88e3ae... They market it for use-cases like RTC backup batteries and solar powered BLE beacons.
- yetihehe 2y ago
  > approximately 100 times greater than the energy density of TDK’s conventional solid-state battery. So, not 100 times greater than lion, but 2-4x (250–693 W⋅h/L [0]) is a lot. [0] https://en.wikipedia.org/wiki/Lithium-ion_battery https://en.wikipedia.org/wiki/Lithium-ion_battery
  - huijzer 2y ago
    CATL also announced 500 Wh/kg batteries [1] (but I haven't found real shipments yet). [1]: https://www.catl.com/en/news/6015.html https://www.catl.com/en/news/6015.html
everdrive 2y ago
This is one of the reasons why I'm not very optimistic for environmentalism. People's needs and wants are sort of like gasses: they expand to fill the space they're in. More efficient engines in cars often just mean they're a tiny bit more efficient and significantly faster than they actually need to be. (rather than significantly more efficient and relatively slow) Modern computers are incredibly fast, but we just keep making webpages heavier, and operating systems heavier. So although many modern computers are quite efficient when considering speed to power consumption, they could use significantly less power, except for the fact that people are always chasing the next thing. We eat up our new efficiencies the moment we invent them.
- longitudinal93 2y ago
  Aka Jevon's Paradox. https://en.m.wikipedia.org/wiki/Jevons_paradox https://en.m.wikipedia.org/wiki/Jevons_paradox
- Euphorbium 2y ago
  Eventually you will need an antimatter reactor to display a text website and run a messaging app slower than 40 years ago.
- bilsbie 2y ago
  Sounds like a false dichotomy. There’s no reason we can’t have technology and luxury and a great environment.
  - darby_nine 2y ago
    Sadly, those who produce the technology (ie many on this forum) will happily sacrifice the environment to retain the power dynamic.
  - everdrive 2y ago
    There is a reason: human nature. We could have both in principle, but time and time again we just expand until we are unable to continue. (and then until a technological breakthrough takes things further) It feels a lot like the obesity problem; the solution in principle is fairly simple, (people just need to eat less) but in practice this isn't something that's very easy for people to do. The bulk of people are unsuccessful here.
    - vikramkr 2y ago
      We don't really do that though, population growth is leveling off on its own. Industrial revolution pretty much broke the malthusian trap. Now growth of economies fuels growth in GDP per capita instead of growth of capita. We've also made a few rather significant technological breakthroughs against the obesity problem recently. Human nature's proven to be a bit more complex than that.
asoneth 2y ago
> A laptop/phone that needs to be recharged every few weeks… heaven. Agreed. Unfortunately it seems like increases in battery density are soaked up by either increased energy consumption (screen resolution/brightness, processor) or decreased battery volume to make a thinner device. I have a smartwatch that doesn't require wall charging (a Garmin Instinct with solar) and I really like the combination of solar cells, low-power processor, monochrome screen, and frugal radios. That got me curious about a low-powered laptop and I've been eyeing an e-ink tablet with keyboard (e.g. Boox Tab or Remarkable 2) but I think it'd be a little too limited for my laptop usecases. And all the super-energy-efficient phones (e.g. e-ink) I've seen simply shrink the battery volume to offset any efficiency gains.
moffkalast 2y ago
> that needs to be recharged every few weeks "Yeah you're not getting that, you'll just get a smaller battery that'll give you the same 6 hours and you're gonna like it." - every laptop manufacturer ever
- miahi 2y ago
  "But look how thin it is!"
  - moffkalast 2y ago
    "So think I think I can actually bend i- oh shit."
- ExoticPearTree 2y ago
  I wonder what the economic reason for that would be, assuming that such a battery exists.
- nasmorn 2y ago
  Laptop battery size has historically been limited in high performance machines by the FAA with 100Wh. I guess you could build a MacBook Air type device with insane battery life nowadays though.
  - moffkalast 2y ago
    Does the rest of the world have similar rules or is this a case of manufacturers aiming for the largest possible compatible market, as a sort of Brussels Effect but in a shitty least common denominator way?
    - nasmorn 2y ago
      There is an global IATA regulation with the same limit I don’t know which was first

I really wish any of these companies creating super batteries that have a lot of capacity to actually market them. A laptop/phone that needs to be recharged every few weeks… heaven.

Youden 2y ago

This isn't nearly ready for phones or laptops. Its nominal characteristics are 1.5V, 100µAh capacity, 20µA discharge: https://www.tdk-electronics.tdk.com/download/2427688/a88e3aeab8be00d00fce586b0efec694/06-dl-ceracharge-presentation.pdf https://www.tdk-electronics.tdk.com/download/2427688/a88e3ae... They market it for use-cases like RTC backup batteries and solar powered BLE beacons.

yetihehe 2y ago
> approximately 100 times greater than the energy density of TDK’s conventional solid-state battery. So, not 100 times greater than lion, but 2-4x (250–693 W⋅h/L [0]) is a lot. [0] https://en.wikipedia.org/wiki/Lithium-ion_battery https://en.wikipedia.org/wiki/Lithium-ion_battery
- huijzer 2y ago
  CATL also announced 500 Wh/kg batteries [1] (but I haven't found real shipments yet). [1]: https://www.catl.com/en/news/6015.html https://www.catl.com/en/news/6015.html

everdrive 2y ago

This is one of the reasons why I'm not very optimistic for environmentalism. People's needs and wants are sort of like gasses: they expand to fill the space they're in. More efficient engines in cars often just mean they're a tiny bit more efficient and significantly faster than they actually need to be. (rather than significantly more efficient and relatively slow) Modern computers are incredibly fast, but we just keep making webpages heavier, and operating systems heavier. So although many modern computers are quite efficient when considering speed to power consumption, they could use significantly less power, except for the fact that people are always chasing the next thing. We eat up our new efficiencies the moment we invent them.

longitudinal93 2y ago
Aka Jevon's Paradox. https://en.m.wikipedia.org/wiki/Jevons_paradox https://en.m.wikipedia.org/wiki/Jevons_paradox
Euphorbium 2y ago
Eventually you will need an antimatter reactor to display a text website and run a messaging app slower than 40 years ago.
bilsbie 2y ago
Sounds like a false dichotomy. There’s no reason we can’t have technology and luxury and a great environment.
- darby_nine 2y ago
  Sadly, those who produce the technology (ie many on this forum) will happily sacrifice the environment to retain the power dynamic.
- everdrive 2y ago
  There is a reason: human nature. We could have both in principle, but time and time again we just expand until we are unable to continue. (and then until a technological breakthrough takes things further) It feels a lot like the obesity problem; the solution in principle is fairly simple, (people just need to eat less) but in practice this isn't something that's very easy for people to do. The bulk of people are unsuccessful here.
  - vikramkr 2y ago
    We don't really do that though, population growth is leveling off on its own. Industrial revolution pretty much broke the malthusian trap. Now growth of economies fuels growth in GDP per capita instead of growth of capita. We've also made a few rather significant technological breakthroughs against the obesity problem recently. Human nature's proven to be a bit more complex than that.

asoneth 2y ago

> A laptop/phone that needs to be recharged every few weeks… heaven. Agreed. Unfortunately it seems like increases in battery density are soaked up by either increased energy consumption (screen resolution/brightness, processor) or decreased battery volume to make a thinner device. I have a smartwatch that doesn't require wall charging (a Garmin Instinct with solar) and I really like the combination of solar cells, low-power processor, monochrome screen, and frugal radios. That got me curious about a low-powered laptop and I've been eyeing an e-ink tablet with keyboard (e.g. Boox Tab or Remarkable 2) but I think it'd be a little too limited for my laptop usecases. And all the super-energy-efficient phones (e.g. e-ink) I've seen simply shrink the battery volume to offset any efficiency gains.

moffkalast 2y ago

> that needs to be recharged every few weeks "Yeah you're not getting that, you'll just get a smaller battery that'll give you the same 6 hours and you're gonna like it." - every laptop manufacturer ever

miahi 2y ago
"But look how thin it is!"
- moffkalast 2y ago
  "So think I think I can actually bend i- oh shit."
ExoticPearTree 2y ago
I wonder what the economic reason for that would be, assuming that such a battery exists.
nasmorn 2y ago
Laptop battery size has historically been limited in high performance machines by the FAA with 100Wh. I guess you could build a MacBook Air type device with insane battery life nowadays though.
- moffkalast 2y ago
  Does the rest of the world have similar rules or is this a case of manufacturers aiming for the largest possible compatible market, as a sort of Brussels Effect but in a shitty least common denominator way?
  - nasmorn 2y ago
    There is an global IATA regulation with the same limit I don’t know which was first