Vienna Design Week 2010: Vienna designersMischer’Traxler made batteries from 700 used coffee capsules to power clocks installed in the window of Nespresso Austria during Vienna Design Week.
Called Nespresso Battery, the installation uses aluminium in the capsules together with strips of copper, coffee grounds and salt water to make batteries.
The energy for the movement of the sweep hands is powered by 17 simple, self made batteries. Each battery-block consists of used old aluminium capsules, coffee grounds, strips of copper and salt water. In this mixture between a soil battery and a salt water battery the aluminium 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.