HOW BATTERIES WORK

All batteries have the same basic components: two electrodes and an electrolyte

ANODE

The negative electrode releases electrons into the circuit.

MAKING ELECTRONS

The anode oxidises, releasing positively charged ions into the electrolyte.

ELECTRODES

All batteries need somewhere for electrons to come from and somewhere for electrons to go.

CATHODE

The positive electrode takes electrons from the circuit.

TAKING ELECTRONS

The cathode reduces, giving electrons to positively charged ions in the electrolyte.

ELECTROLYTE

The electrolyte allows ions to move between the anode and cathode.