Water-based battery "safe, efficient, non-toxic"

Comments

• atzanteol@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

  But it’s the size of a room and can only be charged twice?

  Battery articles annoy me to no end. They’re always overly optimistic about the new features and ignore the regressions.

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  • Varyk@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

    And discharges a little over a volt. Yea. The limitations of "new. “beautiful” batteries need to come at the top of the article.

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    • batmaniam@lemmy.world ⁨11⁩ ⁨months⁩ ago

      That voltage output is pretty typical. They should have gone with “cell” over “battery” though.

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  • Hazdaz@lemmy.world ⁨11⁩ ⁨months⁩ ago

    …and they are usually (but not always) written by someone with almost zero technical knowledge.

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  • batmaniam@lemmy.world ⁨11⁩ ⁨months⁩ ago

    Did I miss that or are you saying it rhetorically? I didn’t pull the actual scientific article but this one mentioned decent performance over 800 cycles and 100 mAh/g. I’m not really up on this kind of tech but that seems pretty nifty for a new chemistry .

    If you were just being rhetorical I get the frustration. There’s always gremlins hiding somewhere.

    Still, I take stuff like this as indicitive that were absolutely not going to be stuck with Li ion forever.

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    • frezik@midwest.social ⁨11⁩ ⁨months⁩ ago

      The mAh/g might be comparable, but it’s only 1V per cell. Lithium cells are 3.3V per cell, so the overall Wh capacity is three times lower.

      Since it’s made of cheap and abundant materials, it could still be useful for grid storage, or for a cheap commuter EV.

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    • atzanteol@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

      Sorry, I was definitely being rhetorical. I’m happy to see research continue, I just tire of the hype…

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    • BrianTheeBiscuiteer@lemmy.world ⁨11⁩ ⁨months⁩ ago

      I’m like, how bad are salt water batteries that this is an “achievement”?

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  • Jamie@jamie.moe ⁨11⁩ ⁨months⁩ ago

    It’s the presentation of the information that really matters. Even if it’s not effective, a water based battery proof of concept is still better than nothing. Just because it isn’t practical right now doesn’t mean it isn’t noteworthy.

    The issue is presenting it with the implication that it’s a ready to use product.

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• ApeNo1@lemm.ee ⁨11⁩ ⁨months⁩ ago

  “But Batteryo’s got what plants crave. It’s got electrolytes.”

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• TonyTonyChopper@mander.xyz ⁨11⁩ ⁨months⁩ ago

  Professor Jia said that most batteries contained hazardous materials and could pollute the environment when disposed of in landfills or when thrown out elsewhere. He said that materials like lead, cadmium, and mercury

  what year is it?

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• itsonlygeorge@reddthat.com ⁨11⁩ ⁨months⁩ ago

  Is this like the water powered car? Get ready for it to disappear.

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  • FlyingSquid@lemmy.world ⁨11⁩ ⁨months⁩ ago

    The water powered car “disappeared” because it was never real in the first place. Every “demonstration” has turned out to be a hoax. It doesn’t even make sense in terms of physics.

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    • SkyeStarfall@lemmy.blahaj.zone ⁨11⁩ ⁨months⁩ ago

      Water is effectively the ash equivalent of hydrogen. If you burn carbon stuff you get ash from the impurities as well as CO2 (and some other possible things), and when you burn hydrogen you get water.

      You cannot burn water because it’s already burnt.

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• Robert7301201@slrpnk.net ⁨11⁩ ⁨months⁩ ago

  I expected this to be a satirical article for pumped hydro.

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