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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.

7 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 sakdoctor · · Score: 5, Informative

      1 Wh/kg = 1 mWh/g

    3. 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.

    4. 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?
  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 __aagmrb7289 · · Score: 2, Informative

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