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Georges Leclanche's 1866 design used zinc and manganese dioxide, and a sealed dry version followed twenty years later. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Yes. It sits on the Technology shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

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The zinc carbon cell began as a wet battery

Georges Leclanche's 1866 design used zinc and manganese dioxide, and a sealed dry version followed twenty years later Leclanche's cell used a zinc rod and a carbon block packed in manganese dioxide, standing in a solution of ammonium chloride. Carl Gassner turned it into a sealed paste cell in 1886, which could be carried and used in any orientation. The chemistry gives about 1.5 volts and helped make portable lamps and early radios practical. It sits in Mondo's technology collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Britannica

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Tags: batteries, zinc-carbon, electricity

The zinc carbon cell began as a wet battery: the short answers

Where does this come from, and can I check it?: Georges Leclanche's 1866 design used zinc and manganese dioxide, and a sealed dry version followed twenty years later. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?: Yes. It sits on the Technology shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.