BATTERY LEARN ZONE

It all starts with an empty can - the battery container.

A cathode mix - finely ground powders of manganese dioxide and conductors carrying a naturally occurring positive electrical charge - is moulded to the inside wall of the empty container.

A separator paper is inserted to keep the cathode from touching the anode.

The anode, which carries a negative electrical charge, and potassium hydroxide electrolyte are then pumped into each container.

The brass pin, which forms the negative current collector, is inserted into the battery, which is then sealed and capped.