Leclanché cell

Leclanche cell

Garnet. Credit: Mineral Information Institute.

The Leclanché cell is a primary, electric cell invented (1867) by the French engineer Georges Leclanché (1839–82). Its anode was a zinc rod and its cathode a carbon plate surrounded by packed manganese dioxide. These electrodes were dipped into a solution of ammonium and zinc chlorides. It is the basis of the dry cell (see battery).