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zinc cabon battery

The zinc-carbon battery is one of the classic batteries, also known as the manganese dioxide-zinc element, because the positive electrode

, the cathode, contains, among other things, manganese dioxide. Because it can be manufactured extremely cheaply, it continues to be widely used. Zinc-carbon batteries are concentric in

design.They consist of a round zinc container, which forms the negative anode, containing the electrolyte

, a solution of ammonium chloride. The central component is the positive cathode. It consists of manganese oxide in which a carbon rod is centrally located. The carbon rod together with the manganese oxide forms the positive cathode. The electrodes are led to the outside via a metal cap and the metal base.

Structure of the zinc-carbon battery

Structure of the zinc-carbon battery

Zinc-carbon batteries supply a voltage of 1 V to 1.5 V through electrochemical conversion. The terminal voltage can be increased to 4.5 V or 9 V by connecting several zinc-carbon batteries in series. The energy density is 250 Wh/kg and the self-discharge is 7% per month.

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Englisch: zinc cabon battery
Updated at: 03.03.2020
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