Electrode

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]

^ Whitaker, Harry (2007). Brain, Mind and Medicine: Essays in eighteenth-century neuroscience. New York, NY: Springer. p. 140. ISBN 978-0387709673.

[1] Whitaker, Harry (2007). Brain, Mind and Medicine: Essays in eighteenth-century neuroscience. New York, NY: Springer. p. 140. ISBN 978-0387709673.

[1]