• zr0@lemmy.dbzer0.com
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    7 days 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.

      • zr0@lemmy.dbzer0.com
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        7 days 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

    • JackbyDev@programming.dev
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      6 days 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.

      • Liberteez@lemm.ee
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        6 days ago

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

  • iAvicenna@lemmy.world
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    7 days ago

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

    • Dasus@lemmy.world
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      7 days ago

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

    • NotMyOldRedditName@lemmy.world
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      7 days ago

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

      Edit: oh also that was the freezer

      • topherclay@lemmy.world
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        6 days ago

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

  • hendrik@palaver.p3x.de
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    8 days 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 continues to stay nearly dead? And an application in products would be hard to accomplish. At that temperature, all the plastic etc is going to melt. Maybe the solder as well.

    • Imgonnatrythis@sh.itjust.works
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      8 days 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.

      • drosophila@lemmy.blahaj.zone
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        7 days ago

        It might be less the quality of the research and more this:

        (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 i think 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.

        • dual_sport_dork 🐧🗡️@lemmy.world
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          6 days ago

          All true, but I am going to be that nerd and point out that there were indeed commercial devices with lithium ion battery packs in them in the mid to late '90s, especially so in the late '90s. By 2000-2001 you couldn’t escape the damn things in cameras, disc players, PDAs, etc. So yes, it did take relatively forever for the technology to become commercially ubiquitous, but not that long. (And yes, the first couple of waves of Li-Ion batteries were indeed crap, and had all of us geeks clamoring for gadgets that still took AA’s for a while.)

      • Septimaeus@infosec.pub
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        7 days ago

        Hmm, you’re 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.

        Edit: you’re*

  • vollkorntomate@infosec.pub
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    7 days ago

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

  • fox@lemm.ee
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    7 days 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.

  • Rolivers@discuss.tchncs.de
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    7 days 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. Anything above 100 is asking for trouble.

    • Lost_My_Mind@lemmy.world
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      7 days ago

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

      UH-OH!!!

      brb. Gotta put out some fires.

      • Rolivers@discuss.tchncs.de
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        6 days ago

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

        Edit: hmm seems I might be generalizing too much. Not all batteries use water based solutions. My point is that you should avoid a pressure buildup inside the battery due to reaching the solvents’ boiling point.

        • isolatedscotch@discuss.tchncs.de
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          7 days ago

          wha wha what

          no, it’s an organic solvent like ethylene carbonate/propylene carbonate + some other stuff, which have a boiling point of 230+°C ( 446°F)

          heating up batteries is (mostly) fine (under controlled scenarios with known good batteries, spicy pillows can always happen with bad batches) as long as the plastic holding them together doesn’t melt

          you physically CANNOT make a lithium ion battery with water because lithium reacts with water

          from the wikipedia page

          Lithium reacts vigorously with water to form lithium hydroxide (LiOH) and hydrogen gas. Thus, a non-aqueous electrolyte is typically used, and a sealed container rigidly excludes moisture from the battery pack. The non-aqueous electrolyte is typically a mixture of organic carbonates such as ethylene carbonate and propylene carbonate containing complexes of lithium ions.[45] Ethylene carbonate is essential for making solid electrolyte interphase on the carbon anode,[46] but since it is solid at room temperature, a liquid solvent (such as propylene carbonate or diethyl carbonate) is added.

          • Rolivers@discuss.tchncs.de
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            7 days ago

            Good point. It’s highly concentrated inside a battery if not saturated. Hmm. I still wouldn’t expose them to such high temperatures.

            Perhaps a longer duration at lower temperature is safer. I might try it some day with some waste batteries and a battery tester.

    • dzsimbo@lemm.ee
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      7 days ago

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

      • Lka1988@lemmy.dbzer0.com
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        7 days 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^

          • Lka1988@lemmy.dbzer0.com
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            7 days ago

            Glad to be of assistance. May I offer you TOTO’s Extra Platinum Plus subscription tier that helps handle non-standard bodily waste, at only $7.99/mo for 24 months…