Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The cathode is the electrode in an electrochemical cell where reduction (gain of electrons) occurs. It is the site where positive ions are attracted and reduced.
Related terms
Anode: The opposite electrode to the cathode, where oxidation (loss of electrons) occurs.
Electrolyte: A substance that conducts electricity when dissolved in water or melted.
Reduction: A chemical reaction involving the gain of electrons.