Slashdot Mirror

← Back to Stories (view on slashdot.org)

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!"

1 of 22 comments (clear)

  1. 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