Voltaic pile

Schematic diagram of a copperzinc voltaic pile. Each copper–zinc pair had a spacer in the middle, made of cardboard or felt soaked in salt water (the electrolyte). Volta's original piles contained an additional zinc disk at the bottom, and an additional copper disk at the top; these were later shown to be unnecessary.
A voltaic pile on display in the Tempio Voltiano (the Volta Temple) near Volta's home in Como, Italy
Voltaic pile, University History Museum of the University of Pavia.

The voltaic pile was the first electrical battery that could continuously provide an electric current to a circuit.[1] It was invented by Italian chemist Alessandro Volta, who published his experiments in 1799.[2] Its invention can be traced back to an argument between Volta and Luigi Galvani, Volta's fellow Italian scientist who had conducted experiments on frogs' legs.[3] Use of the voltaic pile enabled a rapid series of other discoveries, including the electrical decomposition (electrolysis) of water into oxygen and hydrogen by William Nicholson and Anthony Carlisle (1800), and the discovery or isolation of the chemical elements sodium (1807), potassium (1807), calcium (1808), boron (1808), barium (1808), strontium (1808), and magnesium (1808) by Humphry Davy.[4][5]

The entire 19th-century electrical industry was powered by batteries related to Volta's (e.g. the Daniell cell and Grove cell) until the advent of the dynamo (the electrical generator) in the 1870s.[6]

  1. ^ "Battery: Voltaic Pile". americanhistory.si.edu. Retrieved 2024-05-12.
  2. ^ "Alessandro Volta | Biography, Facts, Battery, & Invention | Britannica". www.britannica.com. 2024-04-15. Retrieved 2024-05-12.
  3. ^ "The Voltaic Pile | Distinctive Collections Spotlights". libraries.mit.edu. Retrieved 2023-01-24.
  4. ^ Cite error: The named reference Decker was invoked but never defined (see the help page).
  5. ^ Russell, Colin (August 2003). "Enterprise and electrolysis..." Chemistry World.
  6. ^ "Alessandro Volta | Biography, Facts, Battery, & Invention | Britannica". www.britannica.com. 2024-04-15. Retrieved 2024-05-12.

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