Material science has just been crushing it for a good long minute now.
There are materials possible that will completely change the world.
Theres probably a room temperature superconductor for example.
The number of possibilities is effectively infinite though, since its not just which atoms, but also how they're arranged.
Theres probably a room temperature superconductor for example.
I thought that one was a no go? Did I miss more news?
As in, one probably exists but has not been discovered yet. Every year scientists get them running closer and closer to room temperature
Even just getting above the boiling temp of liquid nitrogen is a really big deal. Liquid helium is something we will eventually run out of and is largely dependent on fossil fuel extraction to be collected. Helium can't be recaptured after it escapes an open loop cooling system.
LN2 is so much cheaper to run and it's sustainable. We'll never run out of Nitrogen so long as there's power to cool it. LN2 is cheaper than craft beer.
I think they mean hypothetically.
There was one team fairly recently that thought they had developed one that got a lot of press, but it turned out to not be true.
But that was only for that one specific case, it didn't prove that room temperature superconductors can't exist in general, there are still other teams working on developing them, and theoretically they could be possible, we just haven't quite worked out what materials will exhibit superconductivity at room temperature, under what circumstances, and how to make them.
And we have some materials that come pretty damn close, Lanthanum decahydride can exhibit superconductivity at temperatures just a few degrees colder than some home freezers can manage (although at very high pressures)
That's why we name our ages after the materials within. Material science is the foundation for almost all other physical sciences.
There have been constant news articles coming out over the past few years claiming the next big thing in supercapacitor and battery technologies. Very few actually turn out to work practically.
The most exciting things to happen in the last few years (from an average citizen's perspective) are the wider availability of sodium ion batteries (I believe some power tools ship with them now?), the continued testing of liquid flow batteries (endless trials starting with the claim that they might be more economic) and the reduction in costs of lithium-ion solid state batteries (probably due to the economics of electric car demand).
FWIW the distinction between capacitors and batteries gets blurred in the supercapacitor realm. Many of the items sold or researched are blends of chemical ("battery") and electrostatic ("capacitor") energy storage. The headline of this particular pushes the misconception that these concepts can't mix.
My university login no longer works so I can't get a copy of the paper itself :( But from the abstract it looks first stage, far from getting excited about:
This precise control over relaxation time holds promise for a wide array of applications and has the potential to accelerate the development of highly efficient energy storage systems.
"holds promise" and "has the potential" are not miscible with "May Be the Beginning of the End for Batteries".
I've been seeing a lot about Sodium-ion just in the past week.
While they seem to have a huge advantage in being able to charge and discharge at some fairly eye-watering rates, the miserable energy density would seem to limit them to stationary applications, at least for now.
Perfect for backup power, load shifting, and other power-grid-tied applications though.
There are already cars with this technology (one of the cheap Chinese ones)
They've also got much better lifespans, being able to cycle many more times with less capacity loss. As they currently stand, they're much better choices for stationary storage applications. However, I have seen them implemented in power tools and cars for their discharge rates, but it doesn't hurt that they will stay healthy for longer.
I thought one of the main advantages of sodium-ion batteries was price? Great for the applications you listed
|My university login no longer works so I can't get a copy of the paper itself :(
Scihub my brother 🙏
Sadly Sci-Hub has not received updated articles in several years. Alexandra is waiting for the outcome of the trial in India. I don't think it depends on what the outcome is, just that the trial needs to be over.
Serious question: How is this different than all the other sensationalized headlines about some technology that's gonna change everything, and then you later hear nothing about it?
They are all calling for investors just to figure out it doesn't scale.
That's my assumption at least
I had a little discussion with a guy complaining about sodium batteries and how you keep hearing these wild claims and then nothing. I did a quick search and saw an article about a $2 billion partnership agreement to work on a pilot plant for sodium batteries. He claimed it was yet another sensational headline and doubted anything would happen from it. Less than a week later I saw an article about a plant in America being announced.
This stuff is hard. It's not like Master of Orion where you throw money at a specific research and get access upon completion. Different groups around the world are researching a multitude of different ideas, some related, and after a while a bunch of these ideas are combined and associated and researched, and all of a sudden you have a new product that's significantly different from what was available before. And then you see incremental improvements for decades, not unlike the internal combustion engine or rechargeable lithium batteries.
It's the same with many infrastructure problems. You hear about some interesting infrastructure project that's going to transform regional travel, improve transit, make biking/walking safer, or prepare for future natural disasters. Then it takes forever for them to go into place because it takes a long time to plan, do the legal work, and build. But then the infrastructure goes into place and no one thinks twice about the long process behind it.
You are reading about it in Popular Mechanics, so it's definitely a sensationalized headline, we know that at a minimum.
Although we don't see it, all of these developments do actually eventually make their way into battery tech. The batteries of today are not the batteries of 2014.
If you remember what battery powertools were like in early 2010s, it's super obvious how far we've come. The higher end things like battery powered lawn mowers didn't exist, and if you wanted real power, you needed a cord.
I just wish it was an either/or situation.
I don't always need my lawn mower/blower/weed trimmer on batteries. I wish I could easily plug them in when doing light dut work close to the house. But then they couldn't tie me into their battery ecosystem as easily.
I still remember that in the 90s till the 2000s you would get maybe 60 to 90 minutes of battery life out of a new laptop. Then it jumped to 4 or more hours thanks to better batteries, more energy efficient CPUs and displays.
Laptops is a bad example. The improvements are moreso the chips and efficient hardware, not the battery
It’s not what the article says. Still interesting application of mixed 2D/3D technologies. Always hopeful that these energy developments leave the lab though.
Ha, exactly. We've seen the "start of the end" of batteries for decades now.
Headline is dumb. If capacitors are better at being batteries than batteries are, they just become the next generation of batteries.
But capacitors aren’t batteries. Batteries store chemical energy. Capacitors store electrical potential energy. Electronically they behave much differently.
Yes they do… including not holding a charge when the differential drops too far.
The real wins are in battery-backed capacitors. Charge the caps fast, then let them keep the batteries topped up.
That's what I do being off-grid. I have my battery bank then a series of Supercaps to essentially act as an on/off ramp//drawbridge and temper quick demands. Kinda like an inverse soft starter so this is suuuuper interesting to me.
Only for certain types of capacitors. In practice they can overlap quite a bit, especially with common aluminium electrolytic capacitors (these form & dissolve complex aluminium oxide & hydroxide layers on the plates).
Headline is not dumb. There are reasons to make a distinction between the two, the most salient one being that capacitors are several orders of magnitude faster to charge and discharge.
I wonder why I even read these articles. If these do turn out to be useful it will eventually make its way into technologies I use or buy near me. I don't have to hunt them out.
I mean the application isn't exactly arduous but they use capacitors in solar powered watches instead of batteries. They claim you can still get 80% of max voltage after 20 years use.
Electrolytic capacitors are closer to batteries than to non-polarized capacitors. Lithium-ion cells in capacitor housings also exist, presumably to evade tariffs and restrictions involved in shipping batteries.
Electrolytic capacitors use the chemistry to make a very high dielectric allowing the plates to get very close and increase the capacitance and decrease the size.
A cell in a battery is a capacitor then converts the charge on the plates into chemical energy and vice versa allowing much more energy storage and a flat operating range as the plates charge is replenished by the chemical reaction.
This article doesn't go into details but it sounds like the breakthrough is a much better dialectic then storing energy in a chemical reaction.
There are no absolute numbers in here. How much charge can it hold? How does that compare to an AAA battery? How long can it hold the charge and how does it compare? What dimensions would it need to have to store as much as a AAA battery? What's the current projected price?
I wonder if we will get to a point where capacitor batteries will be too good.
Can you image a small issue leading to an entire instantaneous energy dump of a large capacity capacitor while on an airplane?
Make me wonder if we will limit how fast a capacitor can discharge in some consumer goods.
Yeah. Good thing we don’t fill up planes with flammable material today!
/s
I can't wait to see this technology in motorcycles and micro mobility vehicles. It will be a mushroom in Mario Kart IRL. And imagine this tech on drag bikes/cars
Hell yeah that's freaking awesome
I hope to see these become popular someday and with that kind of increase they're likely to get a shit ton of funding
This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.
Ask in DM before posting product reviews or ads. All such posts otherwise are subject to removal.
Rules:
1: All Lemmy rules apply
2: Do not post low effort posts
3: NEVER post naziped*gore stuff
4: Always post article URLs or their archived version URLs as sources, NOT screenshots. Help the blind users.
5: personal rants of Big Tech CEOs like Elon Musk are unwelcome (does not include posts about their companies affecting wide range of people)
6: no advertisement posts unless verified as legitimate and non-exploitative/non-consumerist
7: crypto related posts, unless essential, are disallowed