The Leclanche cell is a type of primary electrochemical cell used to produce electrical energy through chemical reactions. It consists of a zinc rod acting as the anode and a carbon rod surrounded by manganese dioxide acting as the cathode. These are placed in an electrolyte solution of ammonium chloride. The zinc container often serves as both the anode and the outer vessel of the cell. During operation, zinc undergoes oxidation, releasing electrons, while manganese dioxide helps in reducing polarization by reacting with hydrogen gas. The Leclanche cell is commonly used in dry cell batteries and is known for its simple construction and moderate efficiency.