January 25, 2018
…process that restores used cathodes from spent lithium ion batteries and makes them work just as good as new. The process involves harvesting the degraded cathode particles from a used battery and then boiling and heat treating them. Researchers built new batteries using the regenerated cathodes. Charge storage capacity, charging…
April 17, 2019
UC San Diego researchers have improved their recycling process that regenerates degraded cathodes from spent lithium-ion batteries. The new process is safer and uses less energy than their previous method in restoring cathodes to their original capacity and cycle performance.
July 7, 2016
…energy storage capability of a particular class of “lithium-rich” cathode materials—by using a carbon dioxide-based gas mixture to create oxygen vacancies at the material’s surface. Researchers said the treatment improved the energy density—the amount of energy stored per unit mass—of the cathode material by up to 30 to 40 percent.
March 6, 2024
UC San Diego engineers developed a cathode material for lithium-sulfur (Li-S) batteries that is healable and highly conductive, overcoming longstanding challenges of traditional sulfur cathodes. The advance holds promise for bringing more energy dense and low-cost Li-S batteries closer to market.
November 12, 2020
A new process for restoring spent cathodes to mint condition could make it more economical to recycle lithium-ion batteries. The process consumes 80 to 90% less energy than today’s methods, emits about 75% less greenhouse gases, and uses environmentally benign, inexpensive ingredients.
June 18, 2015
In a new study, researchers explain why one particular cathode material works well at high voltages, while most other cathodes do not. The insights, published in the 19 June issue of the journal Science, could help battery developers design rechargeable lithium-ion batteries that operate at higher voltages.
February 23, 2021
A team of researchers designed and manufactured a new sodium-ion conductor for solid-state sodium-ion batteries that is stable when incorporated into higher-voltage oxide cathodes. This new solid electrolyte could dramatically improve the efficiency and lifespan of this class of batteries.
October 7, 2016
University of California San Diego nanoengineering professor Shirley Meng is the recipient of the 2016 Charles W. Tobias Young Investigator Award from the Electrochemical Society (ECS). The award recognizes a young scientist or engineer who has contributed outstanding theoretical or experimental work in the fields of electrochemistry, electrochemical engineering, or…
December 8, 2022
A team including scientists at the University of California San Diego has been chosen to lead a $10M project to promote battery recycling and reuse. It’s part of a $74M award from the United States Department of Energy program on Bipartisan Infrastructure Law.
July 4, 2022
Researchers developed lithium-ion batteries that perform well at freezing cold and scorching hot temperatures, while packing a lot of energy. This could help electric cars travel farther on a single charge in the cold and reduce the need for cooling systems for the cars’ batteries in hot climates.
