UCLA engineers craft material for high-performance 'supercapacitor'
http://newsroom.ucla.edu/portal/ucla/ucla-engineers-craft-material-245169.aspx[font face=Serif][font size=5]UCLA engineers craft material for high-performance 'supercapacitor'[/font]
[font size=4]Discovery could provide rapid power to small devices, large industrial equipment[/font]
By Bill Kisliuk | April 14, 2013
Illustration of form of nobium oxide synthesized by UCLA researchers (UCLA/Nature Materials)
[font size=3]Taking a significant step toward improving the power delivery of systems ranging from urban electrical grids to regenerative braking in hybrid vehicles, researchers at the UCLA Henry Samueli School of Engineering and Applied Science have synthesized a material that shows high capability for both the rapid storage and release of energy.
In a paper published in the April 14 issue of the journal Nature Materials, a team led by professor of materials science and engineering Bruce Dunn defines the characteristics of a synthesized form of niobium oxide with a great facility for storing energy. The material would be used in a "supercapacitor," a device that combines the high storage capacity of lithium ion batteries and the rapid energy-delivery ability of common capacitors.
UCLA researchers said the development could lead to extremely rapid charging of devices, ranging in applications from mobile electronics to industrial equipment. For example, supercapacitors are currently used in energy-capture systems that help power loading cranes at ports, reducing the use of hydrocarbon fuels such as diesel.
"With this work, we are blurring the lines between what is a battery and what is a supercapacitor," said Veronica Augustyn, a graduate student in materials science at UCLA and lead author of the paper. "The discovery takes the disadvantages of capacitors and the disadvantages of batteries and does away with them."
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http://dx.doi.org/10.1038/nmat3601