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How do batteries work?

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How do batteries work? Batteries produce electricity by means of chemical action. A battery contains two different conductors, or electrodes. Usually, one of these is the metal case of the battery.

The electrodes are separated by a conducting liquid or paste, called the electrolyte. The substances in the battery react chemically with each other to produce an electrical current.

As a result of chemical activity a positive charge builds up at one electrode, and this can flow through a conductor such as a wire to the other (negative) electrode. Eventually the chemical energy runs out and the battery becomes exhausted.

A battery consists of a central positive electrode and a metal outer case which acts as the negative electrode. The space between the two is filled with a conducting paste or liquid.


Tags: electricity, chemical



Category: Science & Tech  - ( Science & Tech Archive)

Date Added: 13 December '11


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