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→Function: flow
==Function==
==Function==
Batteries work by transferring particles from one electrode to the other, while causing electrons to flow from one external battery terminal to the other. The anode undergoes oxidation, which generates electrons (electricity). Meanwhile, the cathode undergoes a reduction reaction, which takes in electrons. On the outside of the battery, these electrons attempt to flow from the negative terminal to the positive, creating an energy flow. Placing a load in the circuit, between the negative and positive forces the electrons to pass through the load item, and perform some kind of work. Meanwhile, the internal electrodes continue to react as long as electrons can flow from one electrode to the other, and the required materials are still present.<ref>http://electronics.howstuffworks.com/everyday-tech/battery3.htm</ref><ref>http://electronics.howstuffworks.com/everyday-tech/battery2.htm</ref><br />
Batteries work by transferring particles from one electrode to the other, while causing electrons to flow from one external battery terminal to the other. The anode undergoes oxidation, which generates electrons (electricity). Meanwhile, the cathode undergoes a reduction reaction, which takes in electrons. On the outside of the battery, these electrons attempt to flow from the negative terminal to the positive, creating an energy flow. Placing a load in the circuit, between the negative and positive, forces the electrons to pass through the load item, and perform some kind of work. Meanwhile, the internal electrodes continue to react as long as electrons can flow from one electrode to the other, and the required materials are still present.<ref>http://electronics.howstuffworks.com/everyday-tech/battery3.htm</ref><ref>http://electronics.howstuffworks.com/everyday-tech/battery2.htm</ref><br />
Some batteries are rechargeable, which means that this process can be easily reversed. By forcing electrons to pass through the battery in the opposite direction, the particles which moved from the anode to the cathode are pushed back to the cathode. Once complete, the external power source can be disconnected, and the anode will again try to transfer particles to the cathode, when the external terminals are again connected.
Some batteries are rechargeable, which means that this process can be easily reversed. By forcing electrons to pass through the battery in the opposite direction, the particles which moved from the anode to the cathode are pushed back to the cathode. Once complete, the external power source can be disconnected, and the anode will again try to transfer particles to the cathode, when the external terminals are again connected.