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Daniell cell. Daniell cell (far left), with the disassembled components next to it extending to far right. The Daniell cell is a type of electrochemical cell (battery). It was invented in 1836 by British chemist John Frederic Daniell. It consisted of a copper pot, a copper sulphate solution, sulphuric acid, and a zinc electrode. The chemical reactions in the assembled battery produced electrical power. This illustration is from 'Physique Populaire' (Emile Desbeaux, 1891).
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