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Coffee-Powered Batteries

Posted by timothy on from the these-grounds-are-grounds dept.

michael.creasy writes: "Seems that Sony have come up with a way of using old coffee grounds to make batteries. They are using coffee grounds as the negative electrode material. So now there's yet another reason for having a few cups before going to work -- to power your multitude of electrical gizmos!"

18 of 22 comments (clear)

  1. in related news... by Anonymous Coward · · Score: 1, Funny
    Study links MS to mononucleosis virus--I just knew those bastards at Micro$oft were contributing to more than just the spreading of electronic virii. I'm just waiting to see the study that shows a causal relationship between room-temp IQ and use of M$ products. Interesting question: just which way does the causality go? I suspect both ways.

    M$ zealots and shills: if you are actually responding to this seriously, substitute tech iq for iq, and shut up.

  2. So now... by darkov · · Score: 3, Funny

    ...when I pour my coffee into my laptop keyboard, thats good?

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    Reliable, Great Value Hosting: $7.95/mo 2.4G/120G
  3. Fair-trade coffee by leastsquares · · Score: 1

    Coffee is a great source of poower, but I need lots of it. So, being a considerate citizen of the world, I would like to buy fairly-traded .coffee.

    Is there anywhere in California that sells such stuff, or is that not the "American way"?

    I've already given up trying to find fair-trade bananas (another good source of early-morning energy).

  4. ... by Transcendent · · Score: 1

    so would espresso produce a stronger battery than just normal coffie?

  5. Java Server by CamMac · · Score: 1

    I can't wait to see the first Coffee powered server.

    After the demise of the potato powered server, it'll be great to see anouther organically powered server.

    --Cam

    --
    All jocks think about is sports. All nerds think about is sex.
  6. Re:Fair-trade coffee in CA by jnana · · Score: 2, Informative

    Look here for *tons* of places in California.

  7. They must have no work by tunah · · Score: 1

    *sends resume to sony*

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    Free Java games for your phone: Tontie, Sokoban
  8. This could be a big payoff... by tunah · · Score: 3, Funny
    At first, bacteria are mixed with the coffee grounds and dehydrate the moisture

    Good idea! Dehydrated moisture can fetch up to $5000/kg on the black market!

    --
    Free Java games for your phone: Tontie, Sokoban
    1. Re:This could be a big payoff... by Teratogen · · Score: 1

      "Dehydrate the Zabulon computations!"

      -- Muad Dib

      --
      --- even the safest course is fraught with peril
  9. Magic... by gnovos · · Score: 2

    From Man to Machine to Code, it's your one stop shop!

    --
    "Your superior intellect is no match for our puny weapons!"
  10. JAVA rulezzzz..... by angel'o'sphere · · Score: 1

    :-)

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  11. FINALLY!!! by billmaly · · Score: 1

    An alternative energy idea that I can contribute to!!!

    Why yes, I'd love another cup...and top off my cell phone while your at it...leaded! Thanks so much! :)

  12. Betcha by Anonymous Coward · · Score: 3, Funny

    If you use some of Pitr's experimental Super Triple Espresso, you oughta be able to light up Chicago.

  13. I'd love to be a bored scientist by eaddict · · Score: 2, Interesting

    I often think of how things are found out/invented. I think boredom has allowed creation of many more things than we realize. Why coffe grounds now? Well, someone was doing some experiments and someone else had to make a new pot of coffee and.... Wonder what might be next. Any ideas?

    --
    "If you are on fire you can just stop, drop, and roll. If you fall into Lava you are just dead." - my 5yr old daughter
  14. Re:Fair-trade coffee in CA by leastsquares · · Score: 1

    Cool... thanks.

    Judging by the address, one of the listed places is even within walking distance from my apartment.

  15. You can buy one of these at the toy store! by rufusdufus · · Score: 2, Informative

    I was at a Toy store [Imaginarium] last night and they were selling a clock that runs on Potatoes..or a whole list of things, one of them being coffee grounds.

  16. Diversification by jaseman21 · · Score: 1

    I think that it's just great that sony is making coffee-powered batteries. Maybe overpriced coffee houses will start selling batteries...

  17. Re:Coffee is one thing... just not Hazelnut Coffee by noc · · Score: 1

    Read the article, Einstein. It's about used coffee grounds. Of course, they just use them as a carbon source, which is kind of a silly idea, because they're wonderful for compost, so if you're going to go to the trouble of recycling them, they'd make better fertilizer...