Jeff Dahn | |
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Born | [1] | January 9, 1957
Citizenship | Canadian |
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Known for | Li-ion battery, NMC chemistry |
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Website | www |
Jeff Dahn OC FRSC (born in 1957 in the United States and emigrated to Nova Scotia, Canada in 1970) is a Professor in the Department of Physics & Atmospheric Science 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, cars and many other mobile devices. Although Dr. Dahn made numerous contribution to the development of lithium-ion batteries, his most important discovery was intercalation of Li+ ions into graphite from solvents comprising ethylene carbonate, [3] which was the final piece of the puzzle in the invention of 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. [4]
Dahn obtained his B.Sc. in Physics from Dalhousie University in 1978 and his Ph.D. from the University of British Columbia in 1982.
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. Six years later, in 1996, Dahn returned to Dalhousie University as a professor in the Department of Physics & Atmospheric Science and began to focus his research on lithium-ion batteries.
From the time that he started doing research, Dahn has worked closely with industry. During his years at Simon Fraser University he worked with E-One Moli Energy. Upon moving to Dalhousie in 1996, Dahn became the NSERC/3M Canada Industrial Research Chair in Materials for Advanced Batteries, a position that he was to hold for the next 20 years. In June 2016, Dahn began a 5-year research partnership with Tesla Motors, in order to improve the energy density and lifetime of lithium-ion batteries, along with reducing their cost. [5] [6] In 2021, Dahn and his team at Dalhousie University extended its research contract with Tesla for 5 years. Also in 2021, Dahn was named Chief Scientific Advisor to Novonix, an Australian-based battery materials and technology company. [7] Effective June 15, 2023 Jeff Dahn is on the Scientific Advisory Board for Metamaterials, Inc. (Nasdaq:MMAT)(FSE:MMAT) [8]
Dahn has received numerous awards including: International Battery Materials Association (IBA) Research Award (1995); Herzberg Medal, Canadian Association of Physicists (1996); ECS Battery Division Research Award (1996); Fellow of the Royal Society of Canada (2001); Medal for Excellence in Teaching (2009) from the Canadian Association of Physicists, The Rio-Tinto Alcan Award from the Canadian Institute of Chemistry (2010), the ECS Battery Division Technology Award (2011) the Yeager award from the International Battery Materials Association (2016), the Inaugural Governor General's Innovation Award (2016) [2] and the Gerhard Herzberg Canada Gold Medal for Science and Engineering (2017). [9]
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life. Also noteworthy is a dramatic improvement in lithium-ion battery properties after their market introduction in 1991: over the following 30 years, their volumetric energy density increased threefold while their cost dropped tenfold.
John Bannister Goodenough was an American materials scientist, a solid-state physicist, and a Nobel laureate in chemistry. From 1986 he was a professor of Materials Science, Electrical Engineering and Mechanical Engineering, at the University of Texas at Austin. He is credited with identifying the Goodenough–Kanamori rules of the sign of the magnetic superexchange in materials, with developing materials for computer random-access memory and with inventing cathode materials for lithium-ion batteries.
Intercalation is the reversible inclusion or insertion of a molecule into layered materials with layered structures. Examples are found in graphite and transition metal dichalcogenides.
Sir Michael Stanley Whittingham is a British-American chemist. He is a professor of chemistry and director of both the Institute for Materials Research and the Materials Science and Engineering program at Binghamton University, State University of New York. He also serves as director of the Northeastern Center for Chemical Energy Storage (NECCES) of the U.S. Department of Energy at Binghamton. He was awarded the Nobel Prize in Chemistry in 2019 alongside Akira Yoshino and John B. Goodenough.
The Electrochemical Society is a learned society based in the United States that supports scientific inquiry in the field of electrochemistry solid-state science and related technology. The Society membership comprises more than 8,000 scientists and engineers in over 85 countries at all degree levels and in all fields of electrochemistry, solid-state science and related technologies. Additional support is provided by institutional members including corporations and laboratories.
Rachid Yazami is a Moroccan scientist, engineer, and inventor. He is best known for his critical role in the development of the graphite anode for lithium-ion batteries and his research on fluoride ion batteries.
E-One Moli Energy Corp. is a Taiwanese manufacturer of lithium-ion batteries. It was founded in 1998 and focused on producing high capacity energy cells for notebook computers, high-end electronics and networking communication devices under the "Molicel" brand.
Sodium-ion batteries (NIBs, SIBs, or Na-ion batteries) are several types of rechargeable batteries, which use sodium ions (Na+) as their charge carriers. In some cases, its working principle and cell construction are similar to those of lithium-ion battery (LIB) types, but it replaces lithium with sodium as the intercalating ion. Sodium belongs to the same group in the periodic table as lithium and thus has similar chemical properties. However, in some cases, such as aqueous batteries, SIBs can be quite different from LIBs.
Sir Peter George Bruce, is a British chemist, and Wolfson Professor of Materials in the Department of Materials at the University of Oxford. Between 2018 and 2023, he served as Physical Secretary and Vice President of the Royal Society. Bruce is a founder and Chief Scientist of the Faraday Institution.
Jean-Marie Tarascon FRSC is Professor of Chemistry at the Collège de France in Paris and Director of the French Research Network on Electrochemical Energy Storage (RS2E).
A dual carbon battery is a type of battery that uses graphite as both its cathode and anode material. Compared to lithium-ion batteries, dual-ion batteries (DIBs) require less energy and emit less CO2 during production, have a reduced reliance on critical materials such as Ni or Co, and are more easily recyclable.
Kuzhikalail M. Abraham is an American scientist, a recognized expert on lithium-ion and lithium-ion polymer batteries and is the inventor of the ultrahigh energy density lithium–air battery. Abraham is the principal of E-KEM Sciences in Needham, Massachusetts and a professor at the Northeastern University Center for Renewable Energy Technologies, Northeastern University, in Boston, Massachusetts.
Maria Christina Lampe-Önnerud is a Swedish inorganic chemist, battery-inventor, and entrepreneur. She has founded the companies Boston-Power Inc. (2005–2012) and Cadenza Innovation. She is developing batteries for use in computers, electric vehicles, and grid storage. She has received a number of awards, including the World Economic Forum's Technology Pioneer Award in 2010 and again in 2018, and is an elected member of the Royal Swedish Academy of Engineering Sciences. Lampe-Önnerud has many interests, including opera singing, jazz dancing, playing the cello, and choir directing.
Martin Winter is a German chemist and materials scientist. His research in the field of electrochemical energy storage and conversion focuses on the development of new materials, components and cell designs for batteries and supercapacitors, lithium ion batteries and lithium metal batteries.
Doron Aurbach is an Israeli electrochemist, materials and surface scientist.
George William Crabtree was an American physicist known for his highly cited research on superconducting materials and, since 2012, for his directorship of the Joint Center for Energy Storage Research (JCESR) at Argonne National Laboratory.
Linda Faye Nazar is a Senior Canada Research Chair in Solid State Materials and Distinguished Research Professor of Chemistry at the University of Waterloo. She develops materials for electrochemical energy storage and conversion. Nazar demonstrated that interwoven composites could be used to improve the energy density of lithium–sulphur batteries. She was awarded the 2019 Chemical Institute of Canada Medal.
Ying Shirley Meng is a Singaporean-American materials scientist and academic. She is a professor at the Pritzker School of Molecular Engineering at the University of Chicago and Argonne Collaborative Center for Energy Storage Science (ACCESS) chief scientist at Argonne National Laboratory. Meng is the author and co-author of more than 300 peer-reviewed journal articles, two book chapter and six patents. She serves on the executive committee for battery division at the Electrochemical Society and she is the Editor-in-Chief for MRS Energy & Sustainability.
Lithium nickel manganese cobalt oxides (abbreviated NMC, Li-NMC, LNMC, or NCM) are mixed metal oxides of lithium, nickel, manganese and cobalt with the general formula LiNixMnyCo1-x-yO2. These materials are commonly used in lithium-ion batteries for mobile devices and electric vehicles, acting as the positively charged cathode.
This is a history of the lithium-ion battery.