Cathode: A cathode is an electrode

A cathode is an electrode where a reduction reaction occurs (gain of electrons for the electroactive species). In a battery, on the same electrode, both reactions can occur, whether the battery is discharging or charging. Learn the difference between anode vs. cathode with simple definitions, examples, and diagrams. Perfect for English learners who want to understand science vocabulary clearly. Cathode and Anode are commonly used terms in the context of electrochemistry, specifically in electrochemical cells like batteries and electrolytic cells. An anode is a negative or reducing electrode that releases electrons and oxidizes during an electrochemical reaction whereas a Cathode is a positive or oxidizing electrode.