Grace's Guide

British Industrial History

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Lalande Chaperon

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A type og primary battery, promoted in the late 19th century as suitable for domestic uses (e.g. lighting).

The cell consisted of a zinc positive element, a caustic alkali in aqueous solution as electrolyte, and a negative electrode of iron in contact with copper oxide. It suffered from the disadvantage of a low emf of 0.9 volt (not to mention the consumption of zinc involved in providing domestic lighting).

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