Essays on Dry Cell

Use of AA batteries

AA batteries are sizable and portable devices. They consist of electrochemical cells that are either disposable or rechargeable. Proper use of the dry cell battery is recommended. The type and size of the battery matter when one is choosing the kind to use. The batteries are used to generate power for home appliances. For example, radios, cassette players, toys, and flashlights. The alkaline batteries also referred to as wet cell batteries contain electrolyte liquid that is used to power motorcycles, boats, motor automobiles. During compulsion chemicals electrolyte react with the heavy metals generate power. Ideally, the AA batteries have ...

Material Extraction of Dry Battery AA:

A typical alkaline dry AA cell comprises a cylindrical external case, cathode, anode, and electrolyte and separators. The external casing is made from nickel-plated steel and is lined with a separator to divide the anode and cathode. The separator is made of either a porous synthetic material or layered paper. On one end, the battery canister is sealed with an epoxy or asphalt sealant underlying a steel plate and at the other end with a brass rod driven through the cylinder. The rod is welded to a metallic end cap and passed via an outer plastic seal. Inside the ...

Materials Extraction

These batteries consist of heavy metals such as cadmium, mercury, zinc, and nickel, which are environmental pollutants. Hence recycling them instead of incinerating them together with household waste saves our environment. These valuable metals are recovered during the process of recycling and consequently, save energy by minimizing the use of raw materials. Several materials are extracted from the used batteries and are used to manufacture new ones. Manganese dioxide, which is normally used to catalyze the reaction that produces oxygen from hydrogen peroxide, is contained in the zinc carbon cell. Dry batteries also contain metallic zinc, which is usually ...