Daniell, John Frederic
Published: August 31, 2006, 1:47 am
Updated: August 31, 2006, 1:47 am
This article has been reviewed by the following Topic Editor:
Tom Lawrence
John Frederic Daniell (1790-1845), British chemist and meteorologist, invented the Daniell Cell in 1836—the first battery that was a reliable and lasting source of direct-current electricity. A major problem with the voltaic pile, the first electric battery invented by Volta, was that it could not provide currents for a sustained period of time. Daniell's experiments led to the insertion of a barrier between copper and zinc plates in the cell, which, by stopping hydrogen from forming, solved the problem of polarization and created the first battery to produce a constant electrical current over a long period of time. Among Daniell's other inventions was a new type of dew-point hygrometer to measure humidity, and a pyrometer to measure the heat in a furnace.
Further Reading
John Frederic Daniell (King's College, London)
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Citation
Cutler J. Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Daniell, John Frederic". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth August 31, 2006; Last revised Date August 31, 2006; Retrieved May 21, 2013 <http://www.eoearth.org/article/Daniell,_John_Frederic>
The Author
Cutler J. Cleveland is Professor of Earth and Environment at Boston University, where he also is on the faculty of the Center for Energy and Environmental Studies. Professor Cleveland is Editor-in-Chief of the Encyclopedia of Energy (Elsevier, 2004), winner of an American Library Association award, the Dictionary of Energy (Elsevier, 2005), Handbook of Energy (Elsevier, forthcoming), and is the Founding Editor-in-Chief of the Encyclopedia of Earth. He is the recipient of the Adelma ... (Full Bio)
John Frederic Daniell (1790-1845), British chemist and meteorologist, invented the Daniell Cell in 1836—the first battery that was a reliable and lasting source of direct-current electricity. A major problem with the voltaic pile, the first electric battery invented by Volta, was that it could not provide currents for a sustained period of time. Daniell's experiments led to the insertion of a barrier between copper and zinc plates in the cell, which, by stopping hydrogen from forming, solved the problem of polarization and created the first battery to produce a constant electrical current over a long period of time. Among Daniell's other inventions was a new type of dew-point hygrometer to measure humidity, and a pyrometer to measure the heat in a furnace.
Further Reading
John Frederic Daniell (King's College, London)
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