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A Swell Electrode

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Published on Mar 14, 2012

The silicon (light-colored edge) on this silicon-coated carbon nanofiber electrode (dark middle section) swells up as it is being charged with lithium ions under high magnification. A little more than 200 nanometers wide, the electrode's outer edge of silicon and lithium ions crystallize and appear wavy and shiny as the crystalline material changes the reflection of light.

For more information, visit www.pnnl.gov/news

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