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UMD Researchers Find Ultra-thin Solution to Primary Obstacle in Solid-State Battery Development
http://eng.umd.edu/html/media/release.php?id=445[font face=Serif][font size=5]UMD Researchers Find Ultra-thin Solution to Primary Obstacle in Solid-State Battery Development[/font]
[font size=4]Advance could lead to improved battery safety, performance and cost[/font]
FOR IMMEDIATE RELEASE December 19, 2016
[font size=3]COLLEGE PARK, Md. — A team of researchers at the University of Maryland Energy Research Center and A. James Clark School of Engineering have announced a transformative development in the race to produce batteries that are at once safe, powerful, and affordable.
The researchers are developing game-changing solid-state battery technology, and have made a key advance by inserting a layer of ultra-thin aluminum oxide between lithium electrodes and a solid non-flammable ceramic electrolyte known as garnet. Prior to this advance, there had been little success in developing high-performance, garnet-based solid-state batteries, because the high impedance, more commonly called resistance, between the garnet electrolyte and electrode materials limited the flow of energy or current, dramatically decreasing the battery's ability to charge and discharge.
The University of Maryland team has solved the problem of high impedance between the garnet electrolyte and electrode materials with the layer of ultrathin aluminum oxide, which decreases the impedance 300 fold. This virtually eliminates the barrier to electricity flow within the battery, allowing for efficient charging and discharging of the stored energy.
…
“This is a revolutionary advancement in the field of solid-state batteries—particularly in light of recent battery fires, from Boeing 787s to hoverboards to Samsung smartphones,” said Liangbing Hu, associate professor of materials science and engineering and one of the corresponding authors of the paper. “Our garnet-based solid-state battery is a triple threat, solving the typical problems that trouble existing lithium-ion batteries: safety, performance, and cost.”
…[/font][/font]
http://dx.doi.org/10.1038/nmat4821[font size=4]Advance could lead to improved battery safety, performance and cost[/font]
FOR IMMEDIATE RELEASE December 19, 2016
[font size=3]COLLEGE PARK, Md. — A team of researchers at the University of Maryland Energy Research Center and A. James Clark School of Engineering have announced a transformative development in the race to produce batteries that are at once safe, powerful, and affordable.
The researchers are developing game-changing solid-state battery technology, and have made a key advance by inserting a layer of ultra-thin aluminum oxide between lithium electrodes and a solid non-flammable ceramic electrolyte known as garnet. Prior to this advance, there had been little success in developing high-performance, garnet-based solid-state batteries, because the high impedance, more commonly called resistance, between the garnet electrolyte and electrode materials limited the flow of energy or current, dramatically decreasing the battery's ability to charge and discharge.
The University of Maryland team has solved the problem of high impedance between the garnet electrolyte and electrode materials with the layer of ultrathin aluminum oxide, which decreases the impedance 300 fold. This virtually eliminates the barrier to electricity flow within the battery, allowing for efficient charging and discharging of the stored energy.
…
“This is a revolutionary advancement in the field of solid-state batteries—particularly in light of recent battery fires, from Boeing 787s to hoverboards to Samsung smartphones,” said Liangbing Hu, associate professor of materials science and engineering and one of the corresponding authors of the paper. “Our garnet-based solid-state battery is a triple threat, solving the typical problems that trouble existing lithium-ion batteries: safety, performance, and cost.”
…[/font][/font]