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They die because batteries are essentially a type of electrochemical cell. An electrochemical cells works by reacting 2 different metal solid electrodes with a solution containing the same metals but in an aqueous solution. For example when magnesium electrode is put in a beaker containing magnesium nitrate solution and a silver electrode is put in a silver nitrate solution and the two electrodes are connected together we get electricity flowing through the wire. However when this occurs electrons flow from magnesium electrode to the silver one. When that happens there is a build of a negative charge on the magnesium electrode. At the same time there is a build up of a positive charge on the silver electrode. So we connect a tube called a salt bridge to allow some of the ions in the silver solution to travel to the magnesium solution and vice versa. Now that you know how a battery works you can understand how it stops working. Now as the exchange is happening through the salt bridge to balance the charges on both sides there is a build up on the electrodes. This build prevents the electrode to come in contact with the solutions they are submerged in. When that happens the reaction stops and the battery dies.

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14y ago
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5mo ago

Batteries are used to store and provide electrical energy for various devices and systems. They are portable, easy to use, and can power everything from small electronics like smartphones to larger equipment like electric vehicles. They offer a convenient and reliable source of energy for numerous applications.

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13y ago

school is a place where the electricity requirement is large. in batteries we cant store high amount of current and those will quickly become exhausted . i think we cant power our circuits in school by using batteries better we shall go for power supplies

ANSWER: The real reason is that battery are much safer for students trying to learn then active power supplies. Plus batteries are a hell of a lot cheaper then an active power supply

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13y ago

Yes, although a battery should really be described as a method of storing electricity.

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13y ago

Lithium is more dangerous than alkaline, but it saves space and is lighter due to its lithium contents.

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12y ago

If you through away a battery, acid will slowly escape its hold and get into the ground which leads to plants and animals getting harmed, and acid in pipes leading straight to our homes!

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14y ago

Batteries have a special electric juice in them that responds to electronics to power them its either them or a cord plugged into a wall hope this helps:)

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13y ago

its purpose is to store electricity to power machines, game and lots of other stuff

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12y ago

You cannot store AC current DUMBO

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Q: Why do you use batteries?
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