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Friday, February 3, 2017

DIY aluminum air battery

This aluminum air battery is made from aluminum foil, and activated charcoal, with a paper towel between them soaked in an electrolyte.

Terms:
  • Cathode: the negative terminal
  • Anode: the positive terminal

To test the battery, follow the directions from the site. Then take a multimeter and put the negative (-, black) probe on the charcoal, and the positive end (+, red) on the aluminum foil.
  1. How many volts does it produce? 
  2. How many amps? 
  3. What happens if you crush the charcoal into a powder? Do volts or amps increase? 
Source
Exploratorium.


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