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    Korean researchers have used carbon nanotubes to replace metal coils for ultra-lightweight electric motors that are 80% lighter than metal ones.
    Futurology

    Korean researchers have used carbon nanotubes to replace metal coils for ultra-lightweight electric motors that are 80% lighter than metal ones.


    This isn't going to shave much weight off of EV's. Typically the engine weight is only 2-5% of the total weight. But it may have a much larger effect on battery efficiency and range.

    Internal combustion engine cars are now in their decline phase. We won't see any more technological innovation from them. From now on all the tech innovation is going to be in EVs, which will keep getting better and better than the old gas cars.

    Core-sheath composite electric cables with highly conductive self-assembled carbon nanotube wires and flexible macroscale insulating polymers for lightweight, metal-free motors

    Korean researchers have used carbon nanotubes to replace metal coils for ultra-lightweight electric motors that are 80% lighter than metal ones.
    byu/lughnasadh inFuturology

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    9 Comments

    1. CallMeKolbasz on

      Sounds fun until a car with nanotube coils crashes, and all those involved get exposed to carbon nanotube partices, similar in effect to asbestos.

    2. SsooooOriginal on

      Arguably much bigger news for drone tech.

      My only issue is carbon nanotubes are the next, and arguably more dangerous, asbestos. We are woefully behind and no sign of hope in terms of recognizing these dangers. We need mitigation techniques advancing alongside the research into nano material manufacture and application.

    4. David_temper44 on

      Maybe that´s the secret of how Koenigsegg made his ultralight electric motor
      [https://www.koenigsegg.com/quark-emotor](https://www.koenigsegg.com/quark-emotor)

      “The Quark presents new benchmarks in compact and torque-rich engineering with the firstproduction version weighing just 28.5 kg, producing up to 600 Nm of torque and 250 kWof power.”

    5. Storyteller-Hero on

      With lighter engines, this is one step closer to the Battletech, Armored Core, and Gundam timelines

    6. considerableforsight on

      This could power small electric planes that act like cheap buses between the thousands of empty rural airports. If you can fly to the next town for 20 bucks you could tour all around the USA for the price of a single large plane ticket.

    7. Orstio on

      I wonder if it could also be applied to generators, and how that would affect wind, hydro, and nuclear electricity infrastructure.

    8. Grigonite on

      Gas engines will probably see more advance metallurgy and perhaps see higher compression ratios.

    9. DJCowbro on

      Carbon nanotubes in, metal coils out,
      Electric motors dropping weight, no doubt.
      Eighty percent lighter? That’s no joke,
      Even if the weight math’s more of a footnote.

      But the real win’s not just in mass,
      It’s in how much farther EVs can pass.
      Less drain, more gain, better range on the ride,
      Every watt counts when the miles coincide.

      ICE tech’s done, it’s the sunset scene,
      No more tweaks to that gasoline machine.
      Now it’s EV’s turn to race ahead,
      With motors spun from carbon thread.

      So hats off to Korea, pushing past norms,
      Building the future in nanotube forms.
      Next stop: silent torque, sleek design,
      And cars that sip electrons just fine ⚡🚗🌍