ELECTRODE

"The two electronically conducting parts of an electrochemical cell. See also anode and cathode. These can be simple metallic structures (rods, sheets, etc) or much more complicated, composite structures. E.g., the electrodes in a rechargeable battery will also ""contain"" the chemicals being converted during its operation. The term ""electrode"" is also used to denote complex assemblies that include an electrode in a small vessel, which contains an electrolyte and is equipped with an ion-permeable separator. Reference electrodes are such assemblies. "