TWICE AS MUCH COMPARED TO WHAT???
My left ball?
To answer your question we’ll need to conduct a series of electrical tests on your left ball. Please report to the lab as soon as possible, and wear loose pants.
You really need a statistical baseline on a population of left nuts.
Should set up a PPV website to offset costs of the study.
Going to need a control ball relative to the variable ball to calibrate your measurements.
Compared to a non-hydrous sodium vanadium oxide system.
Yep, I’m just annoyed by lazy headlines.
YOU WON’T BELIEVE
Actor Joins Film
TNT has 1162 Wh/kg ratio.
These new lithium-ion batteries get to 300-400Wh/kg range.
We are hitting the limit what is doable with energy density. Do you really want to carry 100g of TNT in your pocket or few tons of TNT in vehicle going 100km/h.
Of course things are not directly comparable, but ball parks.
Yeah but firewood is like 5 kwh/kg, or 4 times the energy density of TNT. We drive around with wood in our cars all the time.
TNT has 1162 Wh/kg ratio.
How do you recharge TNT?
We are hitting the limit what is doable with energy density.
I mean, we’re definitely running into a problem of how you build a battery without also building a bomb. But the entire point of TNT is rapid thermal expansion. The point of a battery is very low voltage steady release of electrical charge.
I might also note that C4 has around 6 Mwh/kg. A bit of applied chemistry can go a long way to improving energy efficiency. And that’s before you take advantage of geometry to focus pressure, via a shaped charge.
Point being, there’s a lot of clever ways to juice a lemon. We’re a long way from the end of the road on battery improvement.
Yeah, diesel too.
Kinda, yes? Phones already do so much, why not one additional feature to deter theft.
We’ve got a lot of that going around in the USA right now.
Every week with the “miracle battery!” headlines. This has been going on for ages and I’m sick of it.
Sodium-ion batteries are not hype though, they are in production use in multiple industries already. They are generally superior to Lithium based batteries in all regards, with the exception of having a bit lower energy density. An equivalent LiFePO4 battery might be 70-80% of the size for the same storage. It’s not a big deal for large applications like cars and solar storage.
Cool.
Right up there with “cause/cure for dementia found”
“Dyslexia for cure found!”
350 page study concludes some people spend too much time reading.
We found the cure for Alzheimer’s but can’t remember what it was. I think it began with a “c”. Who are you?
Tuesday.
It’s time for your nap, Mr President.
cure for dementia found"
The US government could use some of that these days.
Charged with fusion power! From space! Made from privately mined asteroids!
And it’s got electrolytes!
You can throw any battery in the ocean. The better question is should you?
We are close to finding out why some liquids are blue.
The Gargamel Research Institute
The Institute of Sciencey Things
Doesnt matter if the capacity is even less than sodium batteries.
We’ll see.
Sodium Ion already does 5000+ cycles. Adding Vanadium is not a scalable material. It is very expensive. 400 cycles steady is not useful information because it needs to do much more. They didn’t state a wh/kg density. This is probably not a viable research vector, but “big Vanadium” has proposed a rental model to make Vanadium more scarce for other applications. Flow batteries (a fuel cell with tanks of electrolytes) provides an ultra easy way of recycling/selling the vanadium for traditional uses. Battery rental that forces returning it could be viable.
Right up there with the batteries that would contain about 1 kg of silver in them. Even if they didn’t become insanely expensive you’d have tweakers foaming at the mouth to steal your batteries.
What is the catch?
Low capacity is my guess.
Dunno if the article is the same I have read a few days ago but the, mentioned “everything” except the comparable capacity to sodium or lithium batteries.
And I can’t imagine that the capacity for salty water with tofu remnants is much higher than a sodium battery which is atm serialized for mass production runs (isnt it even available in some capacity as a commercial product?)
What do they do with the Chlorine though?
They run a pool service
Clean chickens.
Man this title reminded me of an old animation involving iPhone and some Android phone, lemme go find…
The part about transforming into a jet and flying you to an island reminded me of the title.
I can only hope these can actually hit commercialization, unlike most new battery technologies that never leave the lab.
Desalinating water might be the best part. Usually, solar power has the downside of needing storage and desalination has the downside of big energy requirements. If you can do both at the same time, it’s a big win for dry climates with lots of sun
There is also the issue with the salt by itself in desalinisation. If it’s removed with water, you have to deal with that stuff. Table salt is really cheap and there is plenty of offer, so you can’t really economically clean it enough and package it for human consumption or industrial use. So what usually happens is that they dump it back at one moment or another. And that is a hard pollution, and can lead to dead zones around the desalinisation plants if not managed well enough. Being able to add it in a high demand product such as batteries takes all those hurdles away
Make it into bricks and build a pyramid somewhere really dry?
Could the excess sodium used for carbon sequestration? Sodium bicarbonate is baking soda but I don’t know what it could be used for aside from baking or if the energy to capture that carbon would even be a net positive.
I need a shit ton of salt in winter for my road. But for how long?
Ever wondered what the salt does after melting?
Same issue.I use salt as a a weed killer in some specific area. So I guess I know, at least a little bit
They are not going to get the sodium from desalination, they will mine it because it’s cheaper.
and more pure
Exactly, the desalination gimmick is bullshit for STEM ignorant hippies.
Sodium ion batteries have less energy density as opposed to Lithium ion (100-150 WH per Kg instead of 150-250). I’m curious how much these “wet” batteries improve that. The article doesn’t say.
Nonetheless, even if it’s not the new battery for your car, it could be useful as energy storage for the grid, storing green (solar) energy for the night, and desalinating seawater at the same time.
My very uneducated understanding is that sodium batteries can be produced virtually anywhere.
Not every battery application needs to maximize energy density, so sodium batteries are good where that is the case.
I also did not read about sodium ion batteries characteristics versus lithium ion, so there might also be other use cases where sodium ion batteries are better.
No thermal runaway if I remember correct as those are not prone to exploding (unlike li-ion/li-po)
There is a branch of battery research that is only focused on grid storage. It’s the last piece to make solar and to a less extent wind unbeatably affordable.
In a home solar setup, batteries are the other half of the cost and have not fallen as fast as the cost of the panels themselves, the other half of the cost. For fully off grid setups, they quickly become the main cost.
Exactly this, there’s a huge market for energy storage, where cost, power and cycle life matter way more than size and weight. And Na-ion can be produced in countries that do not have access to lithium mines, making transport less of an issue and countries more self-sustaining.
Hilarious…all of these batteries are coming out of one country because only one country is doing serious R&D.
If the data is available for mass production, you just need to copy paste the factory and establish the trading partners for supply chains.
Not the same issue as, for example, ASML and China.
And instead of charging them, you can drink them! Unlike Lithium Ion batteries, which you have to chew.
Its got electrolytes! It’s what plants crave!
Sounds like a win/win!
the strategy of retaining crystal interlayer water yielded a specific capacity of 280 mA h g−1 at 10 mA g−1, one of the highest capacities reported for SIB cathodes in literature.
All I could find. This isn’t a statement about capacity(?) Units are wrong(?)
Its worth noting how preliminary this research is. Currently these “batteries” are just jars with chemicals.
https://pubs.rsc.org/en/Content/ArticleLanding/2025/TA/D5TA05128B
https://www.rsc.org/suppdata/d5/ta/d5ta05128b/d5ta05128b2.mp4
mAh/g (milliamp-hours per gram) is essentially still a measurement of capacity, but in terms of current instead of power.
We can do a little dimensional analysis here to translate between them. Power = Current x Voltage, so you’d multiply this (Current x Time)/(Weight) value by the nominal voltage of the cell to get to (Power x Time)/(Weight).
Phone batteries are often specified in units of Current*Time (e.g. milliamp-hours), but I’m not completely sure why. I think it has to do with voltages being standardized for certain types of cells, so the only real variable in the battery capacity is the current.
Edit: rearranged some ideas to make more sense
multiply this (Current x Time)/(Weight) value by the nominal voltage of the cell to get to (Power x Time)/(Weight).
This is the part that annoys me. The nominal voltage could vary between different batteries. 200Ah/g means different capacity for a 6v battery verses a 48v battery. I’m guessing battery scientists are using standardized nominal voltages for these tests or are seeing the same Ah/g capacity at different voltages (that I may have simply missed in the paper because I skimmed it and I don’t claim any deeper knowledge on battery research)
I’m not completely sure why
I think it’s marketing
5000 mAh is much a bigger number than 19 Wh and marketing loves huge numbers
Kinda like BMW did with the i3.
In 2013 Tesla was selling a model with a 60 kWh battery so BMW had the genius idea to install a 20 kWh battery BUT refer to it as “60 Ah” battery.
Tesla introduced the 90 kWh battery? BMW responds with a 94 Ah battery (28 kWh)
Newest Tesla has 100 kWh battery now? BMW has 120 Ah battery (38 kWh)
“See? Higher number!”, says the marketing
And in order to have a comparable range number they had to implement heavy weight reduction techniques like using carbon fiber for the body, negating any cost saving from the smaller battery AND giving the owner a total loss after small collisions as it shatters instead of bending
Finally a new one!
It was too quiet during the whole last year. But before, we had about 2 revolutionary new battery technologies every week.
Would you prefer researchers to not publish results?
Would you prefer
Not at all!
I like serious publications very much, and I was also well humored by all these shoutings about revolutions…
No but I’d prefer if journalists didn’t take the results of one experiment in the lab and write headlines about how cars will now have a 10,000 mile range and charge in 4.2 seconds and last for 75 million cycles
I don’t think any of the mistrust from other comments in this thread is directed at researchers - it’s directed at the usually-sensationalised reporting. The “I’ll believe it when I see it” comments are because journalists have cried wolf too many times so now the headlines are just background noise.
The photo choice is a big one that always bothers me with these articles.
Article photo. https://www.sciencedaily.com/images/1200/aqueous-batteries.webp
Actual lab setup. https://www.rsc.org/suppdata/d5/ta/d5ta05128b/d5ta05128b2.mp4
ok but this specific source is quite sober
well maybe, but that’s exactly what crying wolf does. You hear “twice the enrgy density” so many times that you stop believing it, even if one day it really is true.
If my car battery’s energy density had doubled every time I read a headline saying that a new battery tech will double energy density, it’d now have more energy storage than the sun.
spoiler
edit: assuming 6x10^43j energy capactiy in the sun and 3.6x10^8j (100kwh) in my car, it’d take 116 energy-doubling articles :)
I prefer the media not mindlessly overhype scientific publications.
Yeah I’ll take this seriously when it enters commercial service.
i’ll take 10 please.
