slac – Alternative Energies

admin
accelerator
Energy
January 11, 2016
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To get more oomph from an electron gun, tip it with diamondoids

They sound like futuristic weapons, but electron guns are actually workhorse tools for research and industry: They emit streams of electrons for electron microscopes, semiconductor patterning equipment and particle accelerators, to name a few important uses. Now scientists have figured out how to increase these electron flows 13,000-fold by applying a single layer of diamondoids – tiny, perfect diamond cages – to an electron gun’s sharp gold tip.

admin
berkeley
brookhaven
December 30, 2015
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Technique matters: Different way to make cathodes may mean better batteries

Lithium nickel manganese cobalt oxide, or NMC, is one of the most promising chemistries for better lithium batteries, especially for electric vehicle applications, but scientists have been struggling to get higher capacity out of them. Now researchers have found that using a different method to make the material can offer substantial improvements.

admin
formation
king
December 30, 2015
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Unique 2-level cathode structure improves battery performance

A team of scientists say they’ve found a way to make a battery cathode with a hierarchical structure where the reactive material is abundant yet protected — key points for high capacity and long battery life.