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Researchers produce nanostructures with potential to advance energy devices
Date:9/5/2013

that Sieradzki and Chen have produced by dealloying lithium-tin alloys allows for more efficient transport and storage of the electric charge associated with lithium, while the small size prevents fracture of the tin reservoir that serves as a storage medium for lithium.

Lithium-ion batteries are one of the leading types of rechargeable batteries. They are widely used in consumer products, particularly portable electronics, and are being increasingly used in electric vehicles and aerospace technologies.

Sieradzki and Chen say that with more research and development the porous nanostructures produced by dealloying lithium alloys could provide a lithium-ion battery with improved energy-storage capacity and a faster charge and discharge enabling it to work more rapidly.

One major advantage is that the porous nanostructures providing this electrochemical power boost can evolve spontaneously during tunable dealloying processing conditions. This, Sieradzki explains, opens up possibilities for developing new nanomaterials that could have a multitude of technological applications.

"There are a lot of metals that scientists and engineers have not be able to make nanoporous," he says. "But it turns out that with lithium you can lithiate and de-lithiate a lot of materials, and do it easily at room temperature. So this could really broaden the spectrum for what's possible in making new nanoporous materials by dealloying."


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Contact: Joe Kullman
joe.kullman@asu.edu
480-965-8122
Arizona State University
Source:Eurekalert

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