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How to Make a Metal Chloride Battery

The theory behind a battery is relatively new but the creation of the battery is old with research suggesting ancient Egyptians used primitive types for electroplating. At its most basic level, a battery is just a chemical storage container for energy; once a chemical reaction starts, electrons are released and used to power circuits. There are three main parts that all batteries have: two terminals made of different metals and an electrolyte solution between them. For the purpose of this project the electrolyte will be a metal chloride: table salt.

Things You'll Need

  • Table salt
  • Water
  • Copper wire
  • Zinc wire
  • Voltmeter
  • Wire cutters
  • Water-soluble marker
  • Tape
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Instructions

    • 1

      Create a saturated solution of salt water by adding more salt than the water can dissolve. Pour the salt solution into another cup leaving the extra salt behind, this is the electrolyte used to create the battery.

    • 2

      Strip the outer plastic sheath from both the copper and zinc wires so six inches are left exposed. Coil both bare wire sections around the marker, these are the electrodes.

    • 3

      Tape the electrodes to either side of the cup containing the electrolyte; make sure the coils are completely immersed into the water. Connect a volt meter to the wires, there will be a potential different or voltage showing.


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