7 ms·

First carbon dioxide battery is seven times more efficient than lithium-ion

33 points by elorant 7y ago

pjc50 7y ago
Paper is linked at https://onlinelibrary.wiley.com/doi/10.1002/adma.201902518 https://onlinelibrary.wiley.com/doi/10.1002/adma.201902518 / https://doi.org/10.1002/adma.201902518 https://doi.org/10.1002/adma.201902518 , but is paywalled; only the supplementary info on construction is available. Does anyone with scihub access know what metric is being used for "seven times more efficient" - charge/discharge cycle efficiency? Power/weight?
- fzzzy 7y ago
  The article says "a specific energy density that is more than seven times greater than commonly used lithium-ion batteries"
- gallexme 7y ago
  https://puu.sh/EnbA7/d4a1f4eaff.pdf&mime_type=application%2Fpdf&_size=1441552 https://puu.sh/EnbA7/d4a1f4eaff.pdf&mime_type=application%2F... Sci hub
- sitkack 7y ago
  Aside, doi.org is redirecting to crack/malware site "thesoftin.com" both @1.1.1.1 and @8.8.8.8 report the same cloudflare url for this malware site (104.26.9.237). I dunno if a cloudflare bug or a hostile takeover of doi.org
crb002 7y ago
Requires molybdenum.
- strig 7y ago
  What kind of implications does that have? Is molybdenum very expensive to use in batteries?
  - Kirby64 7y ago
    It's quite a bit less common on earth than either Cobalt or Lithium, and currently pretty much all of it is used for metallurgy or lubrication. Roughly an order of magnitude less common than either Cobalt or Lithium (~20ppm vs. 1.5ppm). EDIT: Also, per wiki, we produce almost 2x the amount per annum of Moly than we do of Cobalt, so presumably we're a lot closer to hitting a ceiling than we are with Cobalt/Lithium.
    - ajurna 7y ago
      naive question but could we resolve this with asteroid mining?
woodandsteel 7y ago
Can someone explain the science behind why a lithium carbon dioxide battery can at least potentially store seven times as much energy as a lithium-ion one?
mikevp 7y ago
Miracle battery breakthrough du jour. I've been watching this soap opera for years. These announcements keep coming, but nothing I can pop down to Fry's and pick some up. Let me know when they're on the shelf at Fry's or Best Buy, or I can order them from Amazon.
- perl4ever 7y ago
  Well, anything that does suddenly appear in stores or whatever, if you google it, you generally find that it's been in the process of development for 20 or 30 years. So any given story about an innovation could be perfectly real, just not ready for prime time for a few decades.

33 points by elorant 7y ago

Paper is linked at https://onlinelibrary.wiley.com/doi/10.1002/adma.201902518 https://onlinelibrary.wiley.com/doi/10.1002/adma.201902518 / https://doi.org/10.1002/adma.201902518 https://doi.org/10.1002/adma.201902518 , but is paywalled; only the supplementary info on construction is available. Does anyone with scihub access know what metric is being used for "seven times more efficient" - charge/discharge cycle efficiency? Power/weight?

fzzzy 7y ago
The article says "a specific energy density that is more than seven times greater than commonly used lithium-ion batteries"
gallexme 7y ago
https://puu.sh/EnbA7/d4a1f4eaff.pdf&mime_type=application%2Fpdf&_size=1441552 https://puu.sh/EnbA7/d4a1f4eaff.pdf&mime_type=application%2F... Sci hub
sitkack 7y ago
Aside, doi.org is redirecting to crack/malware site "thesoftin.com" both @1.1.1.1 and @8.8.8.8 report the same cloudflare url for this malware site (104.26.9.237). I dunno if a cloudflare bug or a hostile takeover of doi.org

crb002 7y ago

Requires molybdenum.

strig 7y ago
What kind of implications does that have? Is molybdenum very expensive to use in batteries?
- Kirby64 7y ago
  It's quite a bit less common on earth than either Cobalt or Lithium, and currently pretty much all of it is used for metallurgy or lubrication. Roughly an order of magnitude less common than either Cobalt or Lithium (~20ppm vs. 1.5ppm). EDIT: Also, per wiki, we produce almost 2x the amount per annum of Moly than we do of Cobalt, so presumably we're a lot closer to hitting a ceiling than we are with Cobalt/Lithium.
  - ajurna 7y ago
    naive question but could we resolve this with asteroid mining?

woodandsteel 7y ago

Can someone explain the science behind why a lithium carbon dioxide battery can at least potentially store seven times as much energy as a lithium-ion one?

mikevp 7y ago

Miracle battery breakthrough du jour. I've been watching this soap opera for years. These announcements keep coming, but nothing I can pop down to Fry's and pick some up. Let me know when they're on the shelf at Fry's or Best Buy, or I can order them from Amazon.

perl4ever 7y ago
Well, anything that does suddenly appear in stores or whatever, if you google it, you generally find that it's been in the process of development for 20 or 30 years. So any given story about an innovation could be perfectly real, just not ready for prime time for a few decades.