41–50 of 135 posts
Doesn't tell me anything about Energy Density, Volume, or Recharge Cycle.
These monthly breakthrough announcements are getting annoying. Seems that "several hundred cycles" was good enough to publish this one.
Earlier quoted context omitted.
Yea, it also confused me - "anode-free" suggests there is no anode, and to best of my understanding a battery needs two electrodes so there will be a circuit for the current to flow. The full Wikipedia quote is: "An anode-free battery (AFB) is one that is manufactured without an anode. Instead, it creates a metal anode the first time it is charged." It's sort of like "serverless" ;)
I think the way to understand it is that there isn't a special layer in the battery foil for making the anode. It's all chemically the same. I mean, with the server-less analogy, it is sort of like the fact that you don't manage the creation and destruction of the VM, someone (something) is though.
You’re telling me I could run my code AND fire all the employees managing my servers!
Earlier quoted context omitted.
Some discoveries founder in the stage of figure out how to go from a science experiment to a process to manufacture actual batteries. Sometimes there are technical or economic issues that prevent commercialization. Most of the research on this has only started in the last 10 years or so and it does take time to work out the kinks. Even within the common Lithium-ion batteries, there have been constant improvements but…
Did you know Tesla Megapacks have declined in price by 44% over the past 14 months? Sometimes the changes become very visible.
Why did the price of the cars not drop accordingly? Curious.
Why file a patent in UC San Diego
Na4MnCr(PO4)3 Chromium is 5 times more abundant than Lithium in earth crust (0.01% vs 0.002%). Better, but not that much ? "Regular" sodium-ion batteries with prussian blue has, it seems, the great advantage of not using any scarce elements. It would be nice to have a comparison between this solid state chemistry and the regular one.
Is it Trivalent, Hexavalent, or another form of Chromium?
Chromium > Precautions: https://en.wikipedia.org/wiki/Chromium#Precautions
Doesn't tell me anything about Energy Density, Volume, or Recharge Cycle.
"demonstrates a new sodium battery architecture with stable cycling for several hundred cycles" So nowhere near enough for grid storage (depending on their definition of "stable".) The plot shows ~400 Whr/kg and ~800 Whr/L densities. For grid storage that is fine. The paper https://www.nature.com/articles/s41560-024-01569-9 is unfortunately behind a paywall. We will see. Battery technologies live or die on whether th…
I mean if it was otherwise suitable for grid storage it's not a downside obviously, but at those energy densities it can be inferior in terms of cost and/or cycle life and still be commercially viable in other significant markets.
Not to mention this is research, it doesn't have to directly result in a commercially viable product.
Great, yet another new battery revelation that will never come to market. Why is this? Why do we constantly hear of these amazing, technical advances, but yet we never see any of it come to market? - Lithium-Sulfur Batteries - Solid-State Batteries - Sodium-Ion Batteries - Aluminum-Ion Batteries - Silicon Anode Batteries - Magnesium-Ion Batteries - Lithium-Air Batteries - Zinc-Air Batteries - Flow Batteries - Graphen…
Because the market is made up of selfish human beings. First they don't care for long term environmental consequences. If that is not enough, then they use fossil because their enemies are using, and not using it means getting destroyed today.