What is a dry cell battery?

Dry cell batteries are one of the most commonly used types, including AA, 9-volt batteries. Dry cell batteries differ from wet cells because their electrolytes are contained in a low -range pastol, while the wet cell has electrolytes contained in the liquid and is therefore the difference in the names. The chemical reaction in the battery creates an electric charge that flows from the inside into the outer circuit that is connected to the electric device.

What is made of

Dry cell batteries, regardless of their size, usually have the same basic components. In the center of each is a rod called the cathode, which is often made of carbon and surrounded by an electrolyte paste. Various chemicals such as ammonium and manganese oxide can be used to create this paste, depending on the battery type. Cathode and electrolyte paste are packed in paper or cardboard and sealed in a metal cylinder called anode, which is usually made of zinc.

How does it work

anode in a dry cell batteryK has two terminals, one is positive and one that is negative. When the load is connected to the battery terminal, there is a chemical reaction between the anode and the paste that produces about 1.5 volts of electricity. PIN or "collector" in the middle of the battery performs this charge from the battery to an external circuit. This circuit is physically connected to the electronic device with the battery and provides charging necessary for the functioning of the device.

Each set of anode, electrolyte and cathode acts as the only cell and more cells can be connected together in one battery dry cell to create a higher total voltage. After the load is connected for a long time, the chemicals of the battery disintegrate and no longer create a charge. Primary batteries should be discarded as soon as they reach this point, so far, the batteries can be recharged through special devices. This effectively reverse the chemical reaction in each cell, allowing the battery to continue working.

different types

Alkaline batteries areFor more popular than their older counterparts, because they corrode more slowly and thus produce the charge longer. A less commonly used type of battery dry cell uses silver for the cathode rod. Nickel/cadmium (NiCd), nickel metal hydride (NiMH) and lithium-ion (Li-Ion) are rechargeable, which is popular for use in digital cameras with starving power and other portable devices.

Correct processing and disposal

batteries often contain chemicals that are harmful if they are released into the environment and should be recycled correctly. Many municipal recycling programs receive batteries, although modern alkaline ones that can usually be thrown into the household garbage. Consumers should also consider using a recharge battery because they can be reused and can also be recycled after they no longer have a fee.