Vienna designers Misher'Traxler made batteries - yes functioning, energy producing batteries from 700 used Nespresso capsules. Each battery is made from coffee grounds, strips of copper, the Nespresso aluminum capsules, clamps and saltwater and 6 coffee pots power a clock, and the entire piece can power a radio.
"In this mixture between a soil battery and a salt water battery the aluminum functions as the anode, the copper as cathode and the salt water as electrolyte. Due to a chemical reactions a small, but usable, amount of energy is created. Each battery produces about 1,5 – 1,7 Volts of potential and enough power to run a electro – mechanical Quartz clockwork."
-Katharina Mischer and Thomas Traxler
Did we mention is it also gorgeous?!?! We are suckers for anything color coordinated.