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RegularJoe@lemmy.world to science@lemmy.worldEnglish ·
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6 days ago

Lithium-ion battery issue (dendrites can penetrate the battery's separator, causing catastrophic short circuits and safety hazards) researched in study to learn about certain dendrite growth.

phys.org

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Lithium-ion battery issue (dendrites can penetrate the battery's separator, causing catastrophic short circuits and safety hazards) researched in study to learn about certain dendrite growth.

phys.org

RegularJoe@lemmy.world to science@lemmy.worldEnglish ·
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6 days ago
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Thorny issue plaguing lithium-ion batteries laid bare in new study
phys.org
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Lithium dendrites, i.e. tiny crystalline thorns that grow off of lithium-ion battery anodes during charging, have been a persistent challenge for the world's most widely used form of energy storage. "Dendrites can penetrate the battery's separator, causing catastrophic short circuits and safety hazards," said Qing Ai, a former research scientist at Rice University who is a first author on a new study published in Science that reports for the first time exactly how these tricky structures behave inside batteries. "Despite decades of study, the fundamental nanomechanical properties of lithium dendrites remained a mystery—until now."
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  • JohnnyEnzyme@piefed.social
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    6 days ago

    Crystalline dendrites…?

    How would that work?

    • RegularJoe@lemmy.worldOP
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      6 days ago

      https://en.wikipedia.org/wiki/Dendrite_(crystal)

      https://www.geologyin.com/2020/09/dendrite-minerals.html

      https://www.britannica.com/science/dendrite-crystal

      https://www.chemeurope.com/en/encyclopedia/Dendrite_(crystal).html

      • JohnnyEnzyme@piefed.social
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        6 days ago

        If I understand correctly, microscopic dendrites tend to grow out of the lithium ion mass when charging, which can compromise the outer protective layer of the power cell, depending on how that’s constructed.

        That has the possibility to start dangerous fires. I just don’t know how common such a thing is.

        • RegularJoe@lemmy.worldOP
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          6 days ago

          While rare, these are lawyers specializing in lithium battery fires…

          The nationally recognized team at Levin Simes represents clients across the country who experience personal injury as a result of lithium battery fires. To schedule a free consultation, speak with an experienced battery explosion accident lawyer at our firm.

          https://www.levinsimes.com/blog/lithium-ion-battery-fire-statistics

          Lithium-ion battery fire statistics from the Environmental Protection Agency (EPA) show 245 fires within 64 waste facilities alone over a seven-year span, which were determined to be caused or likely caused by lithium-ion batteries and lithium metal.

          The fires from lithium batteries cited by the EPA cause environmental threats and disruption to regional business, impacting 28 states in all ten EPA regions.

          Not only are the threats from fires increasing and jeopardizing manufacturing workers and our environment, but exploding lithium-ion batteries can cause severe and life-changing injuries to consumers. Below, we highlight lithium-ion battery fire statistics and their threat to you.

          And even if it’s a low chance, it’s a chance.

  • in_my_honest_opinion@piefed.social
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    5 days ago

    It started with tin whiskers. https://nepp.nasa.gov/WHISKER/background/index.htm

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