Leclanche wet cell, an early storage battery, 1896

Numéro d’image : 12903362
Leclanche wet cell, an early storage battery, 1896
Leclanche wet cell, an early storage battery, 1896. Invented by the French engineer Georges Leclanche (1839-1882), this was an early form of the zinc carbon (dry cell) battery, the first widely used storage battery. It consisted of a glass vessel containing a zinc rod (left), and a central porous cell of a carbon block surrounded by small pieces of carbon and manganese dioxide and sealed with pitch. The conducting fluid or electrolyte was a strong solution of chloride of ammonia. They were used as a power source in early telephones.
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Crédit: Science Photo Library / Heritage Images / Oxford Science Archive
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