Batteries: How do they work?
September 30th, 2009
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Electricity is the flow of electrons through a conductive path called a circuit. Batteries consist of an anode (-), a cathode (+), and an electrolyte. The battery produces chemical reactions, causing a buildup of electrons at the anode, which results in an electrical difference between the anode and cathode. The electrons attempt to eliminate this difference by repelling each other and attempting to go somewhere with fewer electrons. In a battery, the only place for the electrons to go is to the cathode, but the electrolyte keeps them from doing this.
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