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Nobel Prize

Lithium-ion battery pioneers nab 2019 Nobel Prize in Chemistry

John B. Goodenough, M. Stanley Whittingham, and Akira Yoshino will share the prize for developing the chemistry of the rechargeable batteries

by Bethany Halford
October 9, 2019

 

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Credit: Mitch Jacoby/C&EN; Binghamton University; The Japan Prize Foundation
John B. Goodenough (left), M. Stanley Whittingham, and Akira Yoshino will receive the 2019 Nobel Prize in Chemistry

The 2019 Nobel Prize in Chemistry has been awarded to John B. Goodenough of the University of Texas at Austin, M. Stanley Whittingham of Binghamton University, and Akira Yoshino of Asahi Kasei Corporation and Meijo University “for the development of lithium-ion batteries.” The three will share the roughly $1 million prize equally.

“The lithium-ion battery is shaping the modern world in ways that couldn’t have been anticipated when it was first discovered,” says Gavin Harper, a research fellow at the Faraday Institution and an expert in renewable energy at the University of Birmingham. “It’s an enabling technology that has made possible Star Trek-like devices that we have in the modern world, from smart watches to phones.”

Credit: C&EN/ACS Productions
For a visual explainer of this year's prize, check out our latest episode of Speaking of Chemistry.

Lithium-ion batteries provide a lightweight, rechargeable power source for mobile phones, laptop computers, and electric vehicles. Unlike conventional batteries, which get their power from chemical reactions that break down the electrode, lithium-ion batteries generate power via the reversible flow of lithium ions between the anode and the cathode. But to make this technology possible, chemists had to tame lithium—an alkali metal that’s prone to explosion.

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Credit: C&EN
Lithium-ion batteries work through the reversible flow of lithium ions between an anode and a cathode.

The story of lithium ion batteries’ discovery dates back to the 1970s, during the decade’s oil crisis. Back then Whittingham, who was working for the oil and gas company Exxon, was researching energy-rich materials when he figured out how to make a battery cathode from titanium disulfide (TiS2). TiS2 is a layered material, and lithium ions slip between its layers—a process known as intercalation. Whittingham paired this with an anode made from metallic lithium and added an organic liquid electrolyte that could conduct lithium ions between the two electrodes. This was the first rechargeable lithium battery.

But the battery was not without its flaws. The lithium metal could form whispy needles that caused the battery to short circuit, overheat, and then, possibly, explode. Goodenough, who was working at Oxford University, discovered that lithium ions could also intercalate through cobalt oxide. At around the same time, Yoshino, who was working at Asahi Kasei Corp., showed that lithium ions could also intercalate in petroleum coke.

By using cobalt oxide as the cathode and petroleum coke as the anode, the researchers had a battery that could run at about 4 V, much higher than the about 2.4 V battery Whittingham developed. It also was safer because it contained no metallic lithium. The battery could be recharged hundreds of times without its performance deteriorating and it was introduced commercially in 1991.

Recognition of these chemists’ work with the Nobel Prize has been anticipated by chemists for many years. At 97, Goodenough is the oldest Nobel laureate ever. “There were a lot of scientists that were really rooting for Goodenough this year,” Harper says.

Olof Ramström, a member of the Nobel Committee for Chemistry, couldn’t resist a battery pun as he explained the trio’s work during a press conference this morning, calling it “a highly charged story of tremendous potential.”

American Chemical Society (ACS) President Bonnie Charpentier says that this year’s Nobel announcement is “particularly exciting because the invention of the lithium-ion battery is something that everyone around the world can see the importance of—it enables transportation, it enables communication, it enables storage and portability of energy that makes people more efficient and safer.” She adds, “It’s really exciting to see something that recognizes collaborative work, building on one piece of work after another from three of our long-term members. Among them they have more than 100 years of membership in ACS.” C&EN is published by ACS.

Harper also thinks the prize is timely. “We sit at this crossroads where there’s heightened awareness of the impact we’re having on the world and the need for decarbonization,” he says. “It seems as if those efforts are reaching a crescendo, so I think it’s really timely that this technology that really sits at the nexus of so many other technologies and enables decarbonization should come up this year.”

CORRECTION

This story was updated on Oct. 10, 2019, to correct the anode material Yoshino worked with—petroleum coke, not graphite—and to clarify the voltage of Whittingham's first battery.

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Comments
Michael Thomas Provencher (October 9, 2019 9:37 AM)
It opened my eyes that so many of my students in my chemistry class were born after the release of the first lithium ion batteries, never having the experience of disposable alkaline batteries! This came up in class conversation today.
Pat Roush (October 9, 2019 10:05 AM)
I could not print the entire article....only the first page.
Inam Haque (October 10, 2019 1:16 PM)
Electrochemistry resurfaces. 2019 Nobel energy storage; 1992 Nobel electron transfer.


Alex Buck (October 10, 2019 4:28 PM)
I think it would be most fitting if each of these gentlemen purchased a Tesla roadster with their winnings.
Okewole A. I. (October 11, 2019 8:00 AM)
I am highly impressed by the achievements of these three great chemists and feel proud as a member of ACS.
Susan Odom (October 19, 2019 9:00 PM)
Why does this article have a link to John Goodenough but not to Stanley Whittingham and to Akira Yoshino? Is this article's author unable to appreciate that this award is a 1:1:1 ratio?

https://www.binghamton.edu/chemistry/people/whittingham/whittingham.html

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