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Paper-Thin Batteries Provide Bendable Power

Posted by CmdrTaco on from the battery-paper-airplanes-please dept.

SkinnyGuy writes "New carbon nanotube-based technology could literally allow companies to paint layers of electricity-holding lithium-ion on standard pieces of paper. The possibilities are endless." You can also read the actual paper.

19 of 102 comments (clear)

  1. Energy Density by chill · · Score: 2, Informative

    For the electrical geeks, the energy density is 108 mWh/g. Anyone want to compare that to a standard AA rechargeable?

    --
    Learning HOW to think is more important than learning WHAT to think.
    1. Re:Energy Density by danbert8 · · Score: 5, Informative

      From wikipedia: The specific energy for NiMH material is approximately 70 Wh/kg (250 kJ/kg), compared to 40-60 Wh/kg for the more common nickel-cadmium, or 100-160 Wh/kg for Li-ion.

      This looks like it would be comparable to Li-ion and an improvement over NiMH and NiCd.

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      Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    2. Re:Energy Density by Jurily · · Score: 2, Insightful

      More importantly, will it fry my gonads if it bends too much in my pocket?

    3. Re:Energy Density by sakdoctor · · Score: 5, Informative

      1 Wh/kg = 1 mWh/g

    4. Re:Energy Density by ryanleary · · Score: 3, Informative

      Researchers at Rensselaer Polytechnic Institute produced "paper batteries" on nanocomposite paper with an energy density of about 13Wh/kg back in 2007. You can see the paper here.

    5. Re:Energy Density by danbert8 · · Score: 2, Informative

      The point is, he asked for energy density compared to AA batteries, and I was making the point that they didn't lose any energy density by making it paper thin. I guess looking back over it, it doesn't read that way. Oh well.

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      Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    6. Re:Energy Density by IndustrialComplex · · Score: 5, Funny

      Only if it's a really, really flat and electrically charged, probably for having been hit by a lightning, lion.

      Or a zoo lion run over by a Tesla roadster. Now THAT would be an interesting headline.

      "Coulomb Car Careens and Crashes Cat Cage. Collision Causes Concussion, Catatonic Kitty Carries Charge. Cops Consult Caretakers and Consider Charging Car Caretaker as Careless."

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    7. Re:Energy Density by Moryath · · Score: 2, Funny

      The possibilities are endless.

      What are the possibilities if we fold it into a mobius strip? ;)

    8. Re:Energy Density by dragoneye1589 · · Score: 2, Funny

      Combustion

  2. worst linking job ever by slshwtw · · Score: 5, Informative

    You can also read the actual paper.

    What kind of a protocol is hhttp and what kind of a URL is pubsacsorgdoifull101021nn1018158?

    Actual link

    1. Re:worst linking job ever by danbert8 · · Score: 5, Funny

      It's much faster than just Hyper, it's Hyper Hyper, which is like regular Hyper except on ADHD. Ooh, look at that blinky ad!

      --
      Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    2. Re:worst linking job ever by Jurily · · Score: 4, Funny

      What kind of a protocol is hhttp and what kind of a URL is pubsacsorgdoifull101021nn1018158?

      It's the new RTFA-test. You're the only one who passed.

    3. Re:worst linking job ever by __aagmrb7289 · · Score: 2, Informative

      http://pubs.acs.org/doi/abs/10.1021/nn1018158 That's the corrected link, I believe.

  3. Puns (sorry) by PsyciatricHelp · · Score: 3, Funny

    I read the paper and it was Shockingly Powerful.

    1. Re:Puns (sorry) by Anne_Nonymous · · Score: 2, Funny

      So you got a charge out of it?

    2. Re:Puns (sorry) by erroneus · · Score: 4, Funny

      I clicked on the link and found that there was no charge. After I read the paper, I found it to be both positive and negative. I found the subject matter to be current and energetic. It was both powerful and enlightning. You seem to be applying some resistance to this where I think you should be looking to reduce your impedance. Of course your position on the matter can help determine your polarity.

      Well, thank god it's Faraday...

  4. It's like sci-fi ... by Spectre · · Score: 2, Funny

    "... embed it in a carbon nanotube matrix, and it really is that simple ..."

    I swear, what are carbon nanotubes NOT good for?

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    "Flame away, I wear asbestos underwear"
    1. Re:It's like sci-fi ... by Overzeetop · · Score: 2, Funny

      Carbon nanotubes - the new Asbestos!

      --
      Is it just my observation, or are there way too many stupid people in the world?
  5. Re:What About by HTH+NE1 · · Score: 2, Insightful

    Presumably the first shock from trying to eat the electrically charged paint would get them to stop. Or at least the third attempt.

    --
    Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?