Lemon Juice Battery

The lemon juice battery is a very simple project for anyone who had made same sort of experimentation with lemons batteries. While was watching a video on YouTube ‘How Alkaline batteries work’, without anything to do I started to make an remake of the project of my last year science fair project, but with some improvements instead of lemons as the main battery I just need the lemon juice and some copper, iron cells to carry the chemical reactions.

Supplies

Copper foil

Iron sheet

Small wires

Led

Cardboard

Tweezes

Tape

Soldering iron

Solder wire

A sister who makes good lemonade

Step 1: Make the Anode

Using tweezers cut two 2cm wide iron sheets, then divide them into 6 identical rectangles.

Step 2: Make the Cathode

Using tweezers cut the copper foil into 3 4cm paces, then cut each one in the middle at least fold the sheets into 1.5cm paces.

Step 3: Make the Battery Cell

Cut the cardboard into 2cm wide paces then divide them into 6 identical paces.

Then fold the cardboard to make the shape required to separate the electrodes.

Put the electrodes at each side of the cardboard separator, then secure everything with tape.

Step 4: Wire Up Everything

Using the soldering iron melt some solder wire to the copper electrode to make the positive connection, since the solder can’t meld directly to the iron sheet to solve the problem wrap exposed copper wire on the iron sheet then melt the solder to the copper wire to make the connection.

After that is just connecting the cells together and the led.

Step 5: Test

To start up the battery just souk the cells in lemonade juice without sugar.

note that each cell is capable of generating 340 to 470mv pumping a total of 2.04 to 2.82v sufficient to light up the led