How do electrochemical cells keep oxidation and reduction reactions in separate compartments?

Electrochemical cells keep oxidation and reduction reactions in separate compartments by utilizing two distinct electrodes, each immersed in an electrolyte. This setup allows for the spatial separation of these complementary half-reactions.12

In an electrochemical cell:
* Oxidation occurs at the anode, where a substance loses electrons.1
* Reduction occurs at the cathode, where a substance gains electrons.31

Electrons flow from the anode to the cathode through an external circuit, while ion migration between the compartments, often through a salt bridge or porous membrane, completes the electrical circuit. This physical separation ensures that the oxidation and reduction processes occur independently at their respective electrodes, enabling the conversion of chemical energy to electrical energy or vice versa.123