Electrode
Electrical conductor used to make contact with nonmetallic parts of a circuit / From Wikipedia, the free encyclopedia
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For the Pokémon, see Electrode (Pokémon).
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air). Electrodes are essential parts of batteries that can consist of a variety of materials depending on the type of battery.
The electrophore, invented by Johan Wilcke, was an early version of an electrode used to study static electricity.[1]