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Alkaline cell assembly showing the components of a cell (Inventor of the battery)
Positive cap: Formed protrusion at one end of the battery can which identifies it as the positive terminal.
Steel can: Nickel-plated steel which is formed into a container to hold chemicals and serves as the positive collector.
Outer Jacket: A plastic sleeve which contains decorative printing identifying the cell type and size.
Separator: Porous non-woven fibrous material which separates electrodes; holds electrolyte between electrodes.
Electrolyte: A solution of potassium hydroxide in water which carries the ionic current inside the battery.
Cathode: Manganese dioxide and graphite which take up electrons from the external circuits.
Anode: Powdered zinc metal which serves as the source of electrons.
Anode Collector: Tin-plated brass which serves as a path for the electrons from the anode to the external circuit.
Seal/Vent: Molded plastic disc which holds internal components inside the cell and releases internal pressure when battery is abused.
