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Capacitors to Replace Batteries?

An anonymous reader writes "MIT's Joel Schindall plans to use old technology in a new way with nanotubes. 'We made the connection that perhaps we could take an old product, a capacitor, and use a new technology, nanotechnology, to make that old product in a new way.' Capacitors contain energy as an electric field of charged particles created by two metal electrodes, and capacitors charge faster and last longer than normal batteries, but the problem is that storage capacity is proportional to the surface area of the battery's electrodes. MIT researchers solved this by covering the electrodes with millions of nanotubes. 'It's better for the environment, because it allows the user to not worry about replacing his battery,' he says. 'It can be discharged and charged hundreds of thousands of times, essentially lasting longer than the life of the equipment with which it is associated.'"

17 of 499 comments (clear)

  1. Oh great by tygerstripes · · Score: 5, Funny

    I'm sick of that bloody rabbit. Now it's going to last forever. Perfect.

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    Meta will eat itself
    1. Re:Oh great by Library+Spoff · · Score: 5, Funny

      Do you object to your wife\girlfriend using other vibrators or just that one?

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      Acid House saves Souls
    2. Re:Oh great by tygerstripes · · Score: 5, Funny

      It's the ears - they really chafe me. I wish she'd just have an affair like my other wives.

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      Meta will eat itself
    3. Re:Oh great by CaymanIslandCarpedie · · Score: 3, Funny

      Took me a minute to get it. I orginally thought you were talking about this Rabbit. It keeps going.. and going..and going..

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      "reality has a well-known liberal bias" - Steven Colbert
    4. Re:Oh great by tygerstripes · · Score: 5, Funny

      Dammit. I have to stop clicking \. posted links when I'm at work...

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      Meta will eat itself
    5. Re:Oh great by Grab · · Score: 5, Funny

      Heard about what happened when they put the batteries in the Energiser Bunny backwards? He died from extreme sexual exhaustion - just kept coming, and coming, and coming...

  2. Woohoo! by Anonymous Coward · · Score: 2, Funny

    Finally... the flux capacitor we've all been looking for!

  3. Obligatory, with apologies by Claws+Of+Doom · · Score: 3, Funny

    You implied that a Slashdot comment author has a wife/girlfriend. Please don't. It only makes the inmates restless.

    1. Re:Obligatory, with apologies by Psychotext · · Score: 2, Funny

      You do realise that this is a joke actually perpetuated by geeks? A little self deprecation tends to be fairly harmless.

      Maybe it's because I'm a brit though.

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      People that believe in their opinions don't post AC.
    2. Re:Obligatory, with apologies by CFTM · · Score: 2, Funny

      We Americans are really good at self-depricating humor...afterall look at who we elected president...

  4. out with a bang by spectrokid · · Score: 3, Funny

    Capacitors also have another difference: they can be (dis)charged extremely quickly. That means you will be able to recharge very quickly (if you have a spiffy charger), but I wouldn't want to drop a capacitor powered cellphone in the toilet.....

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    10 ?"Hello World" life was simple then

  5. But what kind of capacity will it have? by Frightened_Turtle · · Score: 2, Funny

    Really, the true test will be if it can handle the load of a Hello Kitty Vibrator.

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    Whew! This water sure is cold!
  6. Re:Let me be among the first to say, by TeknoHog · · Score: 2, Funny

    The image of nanotubes that they show are almost certainly nanotubes made by chemical vapor deposition (CVD). CVD is cheap, scalable, fairly easy, and found in every semiconductor fab you have ever gone to.

    That said, I would not hold my breath

    I would, given all that chemical vapor around. Speaking of which, this sounds like a great way of powering my Phantom console running Duke Nukem Forever.

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    Escher was the first MC and Giger invented the HR department.
  7. A Possible Energizer Commercial by frogstar_robot · · Score: 3, Funny

    A rustic farmer is sitting on his porch. In the distance a "toom toom toom" noise can be heard. A pissed off look crosses the farmer's face as he reaches for his shotgun. He opens the breach of the gun and inserts shells that look distinctly like Energizer batteries. As he looks out over his cornfield, a pair of white ears can be seen serenely sliding above one of the rows. He takes aim and then bolts of lightning lash out of the shotgun towards the stately sliding ears. Drumsticks, drumpieces, and exploded bits of Energizer bunny fly everywhere. A smoking pair of sunglasses lands right at the farmer's feet.

    "I jes hate it when rabbits get in ma corn."

  8. Re:Not sure how this works by twistedsymphony · · Score: 2, Funny

    well... it is NASA

  9. Re:Riverworld anyone? by Chelloveck · · Score: 4, Funny
    [...] back then they didn't have any use for electricity (no computers or Hello Kitty Vibrators) [...]

    It was a sad, sad time to be Hello Kitty.

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    Chelloveck
    I give up on debugging. From now on, SIGSEGV is a feature.
  10. Re:A Possible Duracell Commercial by operagost · · Score: 2, Funny

    That's why you're in IT and not marketing.

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    Gamingmuseum.com: Give your 3D accelerator a rest.