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Applying 'extreme heat' to lithium-ion batteries reportedly restores their capacity, and I think it's the sustainable tech breakthrough of 2025

⁨486⁩ ⁨likes⁩

Submitted ⁨⁨1⁩ ⁨month⁩ ago⁩ by ⁨floofloof@lemmy.ca⁩ to ⁨technology@lemmy.world⁩

https://www.techradar.com/audio/earbuds-airpods/applying-extreme-heat-to-lithium-ion-batteries-reportedly-restores-their-capacity-and-i-think-it-could-be-the-sustainable-tech-breakthrough-of-2025

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Comments

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  • Darkassassin07@lemmy.ca ⁨1⁩ ⁨month⁩ ago

    Que dumbasses tossing their iphones in the toaster oven in 3… 2…

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    • SpikesOtherDog@ani.social ⁨1⁩ ⁨month⁩ ago

      Microwaving the iphone was close to the right answer.

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      • xavier666@lemm.ee ⁨1⁩ ⁨month⁩ ago

        What, you didn’t know you had to crank the power to high before microwaving your phone? Rookie mistake

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    • southsamurai@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      I love the typo because it covers so many things at once

      Queue as in they’re lining up to do it; cue, as in that’s their cue to be stupid; and que (spanish for what) as in what the fuck are they thinking?

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      • boonhet@lemm.ee ⁨1⁩ ⁨month⁩ ago

        I was gonna say there’s no typo but the comment has been edited. What was it originally?

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    • catloaf@lemm.ee ⁨1⁩ ⁨month⁩ ago

      ¿Que dumbasses?

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    • Ledericas@lemm.ee ⁨1⁩ ⁨month⁩ ago

      putting it over the stove.

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  • j0ester@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Oh boy! Idiot TikTok kids is going to start microwaving devices.

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    • TriflingToad@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      didn’t 4chan do that once?

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      • LinyosT@sopuli.xyz ⁨1⁩ ⁨month⁩ ago

        Yeah they tricked people into believing that Apple added something that allowed users to charge their phones by microwaving them

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      • Agent641@lemmy.world ⁨1⁩ ⁨month⁩ ago

        4chan did everything once

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      • Doom@ttrpg.network ⁨1⁩ ⁨month⁩ ago

        multiple times the big one was to wrap a spoon in duct tape and microwave it or boil bleach and drip alcohol in it to make crystals.

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      • WhiteBurrito@lemmy.world ⁨1⁩ ⁨month⁩ ago

        Who is this “4chan”?

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  • hendrik@palaver.p3x.de ⁨1⁩ ⁨month⁩ ago

    Sure. But we need to see pics, or it didn't happen.

    The abstract doesn't mention them re-gaining their old capacity. It only says they shrink. And something about voltage. So I have my doubts. I mean it's nice if my spicy pillow shrinks a bit. But what does that help if it's still nearly dead? And an application in products would be hard to accomplish. At that temperature, all the plastics and the solder are going to melt.

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    • Imgonnatrythis@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      Yes. If you aren’t reading any battery tech article with a huge amount of skepticism you are doing it wrong. More than any other tech sector I can think of, battery research is just absolutely plagued with low quality research that consistently gets picked up by media outlets.

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      • drosophila@lemmy.blahaj.zone ⁨1⁩ ⁨month⁩ ago

        I think its less the quality of the research and more this:

        Image (This comic is a bit outdated nowadays, but you get the idea).

        Except the headlines say “scientists report discovery of miraculous new battery technology using A!”.

        Also people don’t realize how long it takes to commercialize battery technology. I think they put them in the same mental category as computers and other electronics, where a company announces something and then its out that same year. The first lithium ion batteries were made in a lab in the 1970s. A person in 2000 could have said “I’ve been hearing about lithium ion batteries for decades now and they’ve never amounted to anything”, and they would be right, but its not because its a bunk technology or the researchers were quacks.

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      • Septimaeus@infosec.pub ⁨1⁩ ⁨month⁩ ago

        Hmm, your right. At a guess, this field might represent the maximal combined interest of both scientific and pedestrian readership within technology research, since on the one hand energy density and storage logistics is the key limitation for a ton of desirable applications, and on the other most consumers’ experience with batteries establish them as a major convenience factor in their day-to-day.

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  • vollkorntomate@infosec.pub ⁨1⁩ ⁨month⁩ ago

    I hope this article is well peer-reviewed. Otherwise this reads like some LLM came up with the idea

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    • pachrist@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Otherwise this reads as if some LLM 4chan came up with the idea

      Remember kids, updating to iOS 7 enables your phone to charge wirelessly in the microwave.

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    • dulce_3t_decorum_3st@lemmy.world ⁨1⁩ ⁨month⁩ ago

      The “peer” that reviewed it was another LLM.

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      • tias@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago

        Well if it was a human it wouldn’t be a peer, would it

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  • fox@lemm.ee ⁨1⁩ ⁨month⁩ ago

    This title is pretty bad, the paper focus is in designing new battery technologies not magically restoring capacity on the batteries we have today.

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    • bitwolf@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      Is the paper in the article? I couldn’t find it.

      Would you be so kind as to link us?

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      • fox@lemm.ee ⁨1⁩ ⁨month⁩ ago

        it is this one: www.nature.com/articles/s41586-025-08765-x

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  • svcg@lemmy.blahaj.zone ⁨1⁩ ⁨month⁩ ago

    Is this before or after they reach the spicy pillow stage?

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    • riodoro1@lemmy.world ⁨1⁩ ⁨month⁩ ago

      The trick is to let them apply this heat themselves.

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    • chrischryse@lemmy.world ⁨1⁩ ⁨month⁩ ago

      I think before, but there’s a trick for spicy pillow just poke a vent hole, trust me I was in IT for 6 years ;p

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      • Franklin@lemmy.ca ⁨1⁩ ⁨month⁩ ago

        i was just thinking i could use an excuse for some skin grafts

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  • Wispy2891@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I tried it on my car but it doesn’t turn on anymore. Deceiving news

    a Nazi car in flames in front of a corrupted oligarch hotel

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    • Randelung@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Sounds like a 4chan prank, but… 🪦

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    • vga@sopuli.xyz ⁨1⁩ ⁨month⁩ ago

      This turns everyone else on, though.

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  • zr0@lemmy.dbzer0.com ⁨1⁩ ⁨month⁩ ago

    Warning: heating earbuds batteries to over 300F also causes fires

    Reading this tells me the author has absolutely 0 idea of how physics work and is nothing but a blogger of consumer grade equipment. People like that should refrain from trying to understand how science or scientists work.

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    • AnUnusualRelic@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Obviously, physics aren’t done in Fahrenheit.

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      • zr0@lemmy.dbzer0.com ⁨1⁩ ⁨month⁩ ago

        Had to laugh at your comment. Not that it matters in this case, your ear buds are not going to magically combust at just 150°C

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    • JackbyDev@programming.dev ⁨1⁩ ⁨month⁩ ago

      I think you mean they shouldn’t write authoritatively about things they don’t understand, because what you said is really gate keepy. There’s nothing wrong with learning.

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      • Liberteez@lemm.ee ⁨1⁩ ⁨month⁩ ago

        People shouldn’t compare things to gatekeeping unless they can build a cast iron gate

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  • AdolfSchmitler@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Yes but how can shareholders profit from this??

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    • dzsimbo@lemm.ee ⁨1⁩ ⁨month⁩ ago

      By not switching to Na based batteries and keeping a lid on Li mining.

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      • 3laws@lemmy.world ⁨1⁩ ⁨month⁩ ago

        Even BYD is betting on Na tho.

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    • Aux@feddit.uk ⁨1⁩ ⁨month⁩ ago

      By making battery renewing devices.

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      • lka1988@lemmy.dbzer0.com ⁨1⁩ ⁨month⁩ ago

        New ovens will only reach 280°F. But if you subscribe to LG Baking™ Plus™ plan for only $5.99*/mo, you can unlock up to 340°F for all of your essential^†^ baking needs! But wait, if you subscribe to LG Baking™ Plus™ Premium tier for an additional $8.99**/mo, you can unlock up to 425°F and a 20 minute timer!

        ^* introductory rate for new customers only, 2 year contract required, promotion ends after 1 year and increases to $24.99/mo billed annually^

        ^** promotional rate only, 5 year contract required, promotion ends after 2 years and increases to $89.99/mo, billed annually^

        ^† “essential” is defined as items that qualify as food items that require up to 325°F. upon sensing electronic items (batteries, circuit boards, and other non-food items), the contract will be terminated immediately and any funds allocated will be forfeited to LG and its subsidiaries^

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  • Rolive@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago

    Sounds like a horrible idea if not carefully controlled. Perhaps up to 80 degrees in an oil bath could redissolve some of the electrolytes. I guess it could work.

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    • Lost_My_Mind@lemmy.world ⁨1⁩ ⁨month⁩ ago

      So you’re saying I SHOULDN’T preheat my toaster oven to 425F???

      UH-OH!!!

      brb. Gotta put out some fires.

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    • SirActionSack@aussie.zone ⁨1⁩ ⁨month⁩ ago

      How is the boiling point of water relevant to something that’s made of plastic and metal?

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      • Rolive@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago

        Well the electrolyte solution is water based so exceeding the boiling point will cause pressure buildup inside.

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    • dubyakay@lemmy.ca ⁨1⁩ ⁨month⁩ ago

      80 degrees what?

      See, this is where the problems begin.

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      • brendansimms@lemmy.world ⁨1⁩ ⁨month⁩ ago

        heat to 80K…oh wait

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  • bfg9k@lemmy.world ⁨1⁩ ⁨month⁩ ago

    brb chucking my batteries in the oven

    it’s a cheap and easy thrill

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  • x00z@lemmy.world ⁨1⁩ ⁨month⁩ ago

    In the good ol’ days when I ran out of battery and every charger had a different stupid little connector, I often put my phone on the window still or heater to get a little bit of juice to do what I needed to do.

    I guess I am a scientist.

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    • rogermiraki@lemm.ee ⁨1⁩ ⁨month⁩ ago

      Wow, this brought back memories of me rubbing my hands against my old Nokia battery in middle school to heat it up and get a couple extra %.

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    • Damage@feddit.it ⁨1⁩ ⁨month⁩ ago

      We did the opposite, put it in the freezer

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      • Septimaeus@infosec.pub ⁨1⁩ ⁨month⁩ ago

        IIRC freezing accelerates the chemical degradation of lithium ion (especially if you attempt to charge the battery at the same time) and tends to lower both the voltage and amperage of most battery chemistries, but it seems plausible that this might

        1. temporarily defeat a cell protection circuit, allowing a charging procedure to initialize, or
        2. delay a thermal failsafe cut-off of a damaged cell long enough to boot or charge a device

        Regardless, for those tuning in at home, best to keep your batteries out of the freezer, especially lithium types, unless spicy pillows are what you’re after.

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  • RaoulDook@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Important note near the end of the article - they aren’t saying we should cook batteries really -

    “The team’s hypothesis is that the structural disorder developing inside LIBs may become a “tunable parameter” that, if tweaked using chargers at precise voltages to alter said battery composition, could be used to rejuvenate the batteries in our tech without fires.”

    This is a good old idea that goes back to the days of desulfating lead batteries with powerful shocks of high-amperage current. Might just need a special Healing Charger that applies the right voltage/current to dissolve the bad crystals in lithium-ion systems

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    • CucumberFetish@lemm.ee ⁨1⁩ ⁨month⁩ ago

      I remember recovering dead 18650 cells from laptop batteries and “restoring” them with a 12V modded PC PSU. Quite a few of them actually started working again and had some capacity for a few tens of additional cycles. Those cells were never left unattended in a charger and they were always only used in a device you could chuck in a moment’s notice.

      10/10 do not recommend.

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      • RaoulDook@lemmy.world ⁨1⁩ ⁨month⁩ ago

        How did that process work? Did you just connect the +/- ends of the cell to the +/- 12v wires of the PSU and let it feed from the high-amp outputs? Imagine there’s plenty of amps on the GPU and CPU power wires

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    • Tobberone@lemm.ee ⁨1⁩ ⁨month⁩ ago

      Well, there is some data/rumours out there, stemming from a Dutch Tesla forum, that suggests that some fast charging might be beneficial for battery longevity. This seems to corroborate that. I can’t remember the case for always fast charging, though.

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    • drosophila@lemmy.blahaj.zone ⁨1⁩ ⁨month⁩ ago

      With electric cars you might not even need a special charger so much as a special charging cycle. Its already the norm for cars to tell the charger what voltage and current they want, and its already the norm for cars to carefully control their battery’s temperature during charging.

      That’s not to say you’d necessarily be able to do this with just a software update, but its not too far off from the current paradigm.

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      • RaoulDook@lemmy.world ⁨1⁩ ⁨month⁩ ago

        Yeah that’s a good point. Ours uses the same refrigerant system as the AC to cool the battery, and the actual “charger” for the battery is inside the car being controlled by its software etc. The cables that plug in on the outside are technically just power wires, with the charging brains inside the car. That would be amazing if they could update the software to rejuvenate the battery once a year or something.

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  • iAvicenna@lemmy.world ⁨1⁩ ⁨month⁩ ago

    so putting batteries in the fridge wasn’t useful after all, we should put them in the oven

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    • Dasus@lemmy.world ⁨1⁩ ⁨month⁩ ago

      so I can now put my spicy pillows in the oven and tell the insurance men the internet told me to?

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    • NotMyOldRedditName@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Putting my LG Flex which had a boot loop problem due to a soldering issue on the battery solved the problem temporarily!

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      • topherclay@lemmy.world ⁨1⁩ ⁨month⁩ ago

        I’ve known some old people to put their bootloops in the freezer because they think it won’t go stale as fast.

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  • cupcakezealot@lemmy.blahaj.zone ⁨1⁩ ⁨month⁩ ago

    this feels like bait

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    • balder1991@lemmy.world ⁨1⁩ ⁨month⁩ ago

      In reality, this doesn’t affect the existing batteries we have, it’s just for future battery technology.

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  • modus@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Neat! So if I put my phone in the microwave it will reset the battery?

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    • 474D@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Only if you want it soggy, air fryer works better

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      • ArtVandelay@lemmy.world ⁨1⁩ ⁨month⁩ ago

        So is a toaster the new wireless charging hub?

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  • Mooseford@lemmy.today ⁨1⁩ ⁨month⁩ ago

    Where’s my blowtorch?

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  • MITM0@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Who greenlit this article ?

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  • Ulrich@feddit.org ⁨1⁩ ⁨month⁩ ago

    Reminds me of the old days of putting my LG G4 in the freezer

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    • Rolive@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago

      For me that was not so long ago. I still used an LG G4 as permanent car navigation until a year ago or so. I’m still surprised that one didn’t end up bootlooping.

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      • Ulrich@feddit.org ⁨1⁩ ⁨month⁩ ago

        Why’d you put it in the freezer if it wasn’t bootlooping? Just like cold phones?

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  • riodoro1@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Wait, nobody came up with this before?

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  • TheBat@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Thanks, climate change.

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  • uhmbah@lemmy.ca ⁨1⁩ ⁨month⁩ ago

    Oven, 450?

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    • cecilkorik@lemmy.ca ⁨1⁩ ⁨month⁩ ago

      Nah, set it to broil for optimal results /s

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