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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!"

3 of 22 comments (clear)

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

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

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  2. 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!

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  3. 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.