Alkaline battery

Alkaline batteries are a type of power cell dependent upon the reaction between zinc and manganese dioxide (Zn/MnO2). Compared with traditional carbon/zinc batteries, whilst both produce approximately 1.5 volts per cell, alkaline batteries have a higher energy density and longer shelf-life. Compared with silver-oxide batteries, which alkalines commonly compete against in button cells, they have lower energy density and shorter lifetimes.

Related Topics:
Manganese dioxide - Mn - O - Carbon - Zinc - Batteries - Volts - Silver - Batteries

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A cell consists of a steel can, nickel-plated at both ends, the negative, flat terminal being electrically isolated with a nylon seal. Inside the can is the manganese dioxide cathode, a separator membrane, the powdered zinc anode in a potassium hydroxide water electrolyte. Finally, at the axis is a brass pin electrically connected to the negative terminal.

Related Topics:
Nickel - Cathode - Potassium - Electrolyte - Brass

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Around the 1990s, the addition of mercury in alkaline batteries was stopped.

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The long-lasting alkaline battery was invented in 1959 by Eveready Battery engineer Lewis Urry.

Related Topics:
1959 - Eveready Battery - Lewis Urry

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Rayovac produced a rechargeable alkaline battery, which they called Renewal.

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There is also a Canadian company that specializes in rechargable alkalines called Pure Energy

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