The Most Shining Star In The Battery World - Tribute To The Legendary Figure Of The Lithium Battery Gudinaf

The Most Shining Star In The Battery World - Tribute To The Legendary Figure Of The Lithium Battery Gudinaf

Date:Mar 26, 2019

With the advent of the electrification revolution, power batteries have become one of the representatives, and have entered various industries such as electric vehicles, energy storage, and electronic equipment. However, who invented and created the power battery? Why invent a power battery?

捕获

Follow the footsteps of Xiaobian, let us approach the father of lithium batteries - John B. Goodenough (John Banninger Gudinav).

On July 25, 1922, Gudinav was born in the United States. He has an older three-year-old brother whose father is a university history teacher and has a rich family life.

However, there are unexpected events, and Gudinaf suffers from congenital dyslexia, which makes him very difficult to learn during his teenage years. But despite this, Gudinaf overcomes all kinds of difficulties and is admitted to Yale University. In 1943, he earned a bachelor's degree in mathematics and graduated with the most outstanding grades in the class.

These seem to have nothing to do with the power battery, but in fact the spirit of overcoming difficulties and persisting in research has been accompanied by the growth of Gudinaf.

Gudinave was attracted to the philosophy of science during his college years and decided to study physics. The seeds of scientific research were buried.

However, it was not a wish. At the time of World War II, Gudinaf did not study again but turned to war. He resolutely joined the US Air Force as a meteorologist in the US Army Air Force.

During his military service, Gudinav read Whitehead's "Science and the Modern World", which inspired him not to give up his physical dreams and vowed to have the opportunity to learn physics after the war. .After retiring in 1948, after unremitting efforts, Gudinav entered the University of Chicago, focusing on solid physics, under the master of the famous Zener diode inventor, Nobel Prize winner - Clarence Zener, which will study his power battery in the future. Materials research has played a considerable role.

In 1952, Gudinaf received a Ph.D. in solid state physics. He then went to the Lincoln Laboratory to conduct a physical study of the material in memory. More importantly, during this period, Gudinaf was exposed to the migration of lithium ions in solids for the first time, and then began basic research on solid ceramics.

There is an old saying in China that people spend fifty days and noon. But Gudinaf’s life turn is happening at the age of 54.

In 1976, Gudinaf entered the University of Oxford as a professor and head of inorganic chemistry research to conduct research on solid chemistry. He mainly studied new materials that can be used for energy conversion, and proposed the framework structure concept of alkali metal ion solid electrolyte, thereby obtaining a basic patent for a lithium ion secondary battery using a spinel layered structure oxide as a cathode.

If it can develop smoothly, perhaps the current power battery industry pattern will be the overwhelming invasion of the East by the West. However, the development of "drama" is such a "ups and downs."

At that time, the Western market actually had a lithium battery with lithium metal as the electrode, which was very popular among the market. The technology was in the hands of a Canadian company called Moli Energy. The company thought it would make a fortune, but did not expect the battery. An explosion occurred.

Affected by this incident, Gudinaf, who was studying lithium cobalt oxide cathode material at the time, repeatedly said that its safety factor is higher than that of metal lithium, and similar accidents are unlikely. But it is clear that the Western market has been scared by the explosion. The attitude is to control how safe you are and to abandon it.

They all say, "God closes a door for you and opens a window for you." Gudinaf's lithium cobalt oxide research has produced a "chemical effect" with Sony in Japan.

In 1980, Sony developed a graphite anode material that can be used in lithium batteries, but it was difficult to make a lithium-ion battery because it did not have a suitable anode.

When he was "scratching his head," the lithium cobalt oxide studied by Gudinaf was like a flash of light to Sony. Soon, Sony combined lithium cobalt oxide and graphite to develop a new rechargeable lithium battery. This lithium-ion battery was immediately welcomed by the market as soon as it was published, and Gudinaf became famous.

With the passage of time, market development and technological breakthroughs, lithium cobalt oxide is gradually unable to meet demand due to structural instability and other issues, and the market is in urgent need of alternative products.

Gudinav also paid attention to this. In 1983, Gudinaf and M. Thackeray et al. found that manganese spinel is an excellent cathode material with low cost, stability and excellent conductivity and lithium guiding properties. The decomposition temperature is high, and the oxidation is much lower than that of lithium cobaltate. Even if short circuit or overcharge occurs, the danger of burning and explosion can be effectively avoided, and the safety of the lithium battery is greatly improved.

Gudinaf, who should have enjoyed his late years, did not retreat to the second line. Instead, he chose to be a tenured professor at the School of Mechanical and Electrical Engineering at the University of Texas at Austin in 1986 and served as the head of the School of Materials Science and Engineering. Participated in the development of new electrolytes and electrode materials for solid oxide fuel cells (SOFCs) and explained the physical phenomena of electrons from concentration to flow interaction.

In 1997, 75-year-old Gudinaf developed a low-cost lithium iron phosphate LiXFePO4 cathode material to accelerate the commercialization of lithium-ion batteries.

Seeing here, do you think that Gudinaf has reached the peak of his career and can return home? This is not the case. He is obsessed with research on power battery materials. In order to improve the safety and stability of the power battery, Gudinaf has invested in the research of all-solid-state batteries.

Nowadays, all solid-state batteries have gradually become the new darling of the electrification market. Many power battery companies are involved. Although they are still in their infancy, they are full of confidence in the development of all-solid-state batteries.

This year, Gudinaf is 97 years old and still immersed in research and moving on.



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