Lithium-ion battery inventor creates fast-charging solid-state battery

October 09, 2021

John Goodenough, professor of mechanical engineering and materials science at the University of Texas at Austin, is the co-inventor of lithium-ion batteries. Professor Goodenough, 94 years old, led a team that invented a fast-charging, low-cost, all-solid-state battery. "Energy and Environmental Science".

Professor Goodenough said that their findings can solve many of the problems inherent in batteries today. Lithium batteries containing liquid electrolytes do not allow fast charging due to design restrictions. If forced fast, it will lead to the formation of metal whiskers, which may eventually lead to short circuit or explosion. Solid-state batteries do not have these problems.

Researchers use solid glass electrolytes instead of liquid electrolytes to prevent the formation of metal whiskers. In addition, solid-state batteries can operate at extremely low temperatures of minus 20 degrees Celsius. Solid-state batteries have an energy density that is at least three times that of today's lithium-ion batteries, and they are more than 1,200 times charged and discharged.

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