How does a battery produce electricity?

Answer 1

A battery consists on two (or more) different metals (eg nickel + cadmium) sandwiched in thin layers surrounded by a conducting fluid or gel. Electrons flow from 1 metal, throw the fluid into the next and so on down the line until they come out of the terminal at the end into the wire used for making the circuit..

To make a simply battery get a 2 piles of coins, 1 copper and 1 nickel. Stack them alternately ie C,N,C,N,C,N with tissue paper between them. soak the made up pile in salt water and using wire, connect a torch bulb, it should light up.

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A single cell (or set of coins) will produce 2.35V if you need more voltage then connect cells using wire. The longer your pile of coins is, the higher current the battery is capable of providing.

Have fun :)

Answer 2

A battery produces electricity by converting chemical energy into electrical energy. The chemical energy was produced when electricity was connected to the battery, causing a reversible chemical reaction. Connecting the battery leads to a circuit causes current to flow.

Answer 3

it's a chemical reaction
it has sulfuric acid inside (since sulfuric acid is really acidic it will produce alot of electricity, 9 volt batteries just have 6 cells inside of them for more voltage)
along with zinc (for the negative terminal) and copper(for the positive terminal)

if you've ever done the lemon bettery project the you would know how this works (i used a lime instead of a battery but the conclusion remains the same)
http://www.freewebs.com/baronobeefdip/projects.htm