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Jeff Dahn

lithium-ion battery developer

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 9, 2026
Entity authorityQ28115390
Source-derived summary

Jeff Dahn (born in 1957 in the United States and emigrated to Nova Scotia, Canada in 1970) is a Professor in the Department of Physics & Atmospheric Sciences and the Department of Chemistry at Dalhousie University. He is recognized as one of the pioneering developers of the lithium-ion battery, which is now used worldwide in laptop computers, cell-phones, automobiles, and many other mobile devices. Although Dr. Dahn made numerous contributions to the development of lithium-ion batteries, his most important discovery was intercalation of Li+ ions into graphite from solvents comprising ethylene carbonate,

which was the final piece of the puzzle in the invention of the commercial Li-ion battery. Nevertheless, Dahn was not selected for the 2019 Nobel Prize in Chemistry, which recognized only John Goodenough, M. Stanley Whittingham, and Akira Yoshino.

Education

Dahn obtained his B.Sc. in Physics from Dalhousie University in 1978 and his Ph.D. from the University of British Columbia in 1982.

Career

Following his PhD, Dahn did research at the National Research Council of Canada from 1982 until 1985, before working at E-One Moli Energy until 1990. At that time, he took up a faculty position in the Physics Department at Simon Fraser University. In 1996 Dahn returned to Dalhousie University as a professor in the Department of Physics & Atmospheric Sciences and began to focus his research on lithium-ion batteries.

Editorial summary

The public source identifies “Jeff Dahn” as lithium-ion battery developer. This brief keeps that definition visible, then builds a research path around Jeff, Dahn and lithium-ion.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1957, 1970, 2019, 1978—that can be checked directly. The linked authority record independently contributes the date 1957-01-09. Its value is orientation rather than verdict, with Jeff, Dahn and lithium-ion providing the first useful test.
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A short description can identify a subject without explaining its stakes. For “Jeff Dahn”, the useful work is to connect “lithium-ion battery developer” to the records capable of establishing context and consequence.

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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 9, 2026. The linked authority identifier is Q28115390. 1 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1957, 1970, 2019 and 1978.

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Source & attribution

This entry incorporates text from Jeff Dahn” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.