Sentences with phrase «graphite electrodes in»

They create the geodesic dome - shaped carbon balls and hollow carbon tubes by shooting a current through graphite electrodes in a vacuum.

Replacing the graphite electrode in rechargeable lithium batteries with silicon could increase the capacity ten-fold, making them last many hours longer before they run out of juice.

Not exact matches

• GrafTech International, a Brooklyn Heights, Ohio - based firm making graphite electrode products, raised $ 525 million in an IPO of 35 million shares priced at $ 15 apiece, below its range.

During use, lithium ions stored in the graphite flow to the lithium - based electrode, where they form chemical bonds with oxygen atoms, a reaction that generates an electric current.

Researchers have long sought to replace the graphite in the negative electrodes with carbon nanotubes, strawlike tubes of carbon.

In particular, they have to increase the number of charge / discharge cycles significantly, which could be achieved by improving battery and electrode designs as well as by using coatings other than reduced graphite oxide.

These alternative electrodes could be capable of storing nearly three times as much energy as graphite, the material of choice in current lithium - ion batteries.

When the researchers exposed R. ferrireducens to a solution of glucose in a chamber containing a graphite electrode they found that when the bacterium fed on the sugar, it transferred electrons directly to the electrode, producing a current.

In the laboratory, it was a relatively simple step for Lovley to dupe the enterprising microbes into passing their electron booty to an even more attractive mineral — an electrode made of unpolished graphite.

The results, he said, can be directly applied to many oxide and graphite electrodes used in today's commercial lithium ion batteries and in about half of those under development.

In a study published in the journal ACS Nano, researchers showed how a coating that makes high capacity silicon electrodes more durable could lead to a replacement for lower - capacity graphite electrodeIn a study published in the journal ACS Nano, researchers showed how a coating that makes high capacity silicon electrodes more durable could lead to a replacement for lower - capacity graphite electrodein the journal ACS Nano, researchers showed how a coating that makes high capacity silicon electrodes more durable could lead to a replacement for lower - capacity graphite electrodes.

The new battery electrodes, described online in the journal Nano Letters, are anodes and can store much more energy than conventional graphite electrodes because they absorb much more lithium when the battery is charged.

The court found that the plastic replicas were copyrightable because the wishbones were designed using graphite electrodes to make it smooth and «attractive and sleek» with thinner arms and more rounded edges — making them worth $ 1.7 million in damages.