Nanotubes will give us a better battery

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2018-10-26 21:00:08

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Nanotubes will give us a better battery

Scientists from rice University are looking for films of carbon nanotubes to create high-power fast charging a Li-metal batteries that can replace traditional lithium-ion batteries. Laboratory of chemist James Tour has shown that thin films of nanotubes effectively inhibit the appendages that sprout naturally from unprotected lithium metal anodes in batteries. Over time, these dendrites, like tentacle can pierce electrolytic battery core and reach the cathode, whereupon the battery is failing.

This problem has suspended the use of lithium cells (not to be confused with lithium ion) in commercial applications and has prompted scientists worldwide to solve it.

the

When will the battery better?

Lithium cells charge much faster and can store 10 times more energy by volume than lithium-ion electrodes which can now be found in any electronic device, including mobile phones and electric cars.

"One of the ways to slow down the dendrites in lithium-ion batteries limit the speed of charging," says Tour. "People don't like it. They want to charge their battery quickly."

Proposal of rice, described in Advanced Materials, simple, inexpensive and extremely effective in slowing the growth of dendrites, said Tour.

"We have made very simple", says the chemist. "You just need to cover the lithium metal foil of the multilayer carbon nanotube has been. The lithium absorbs the film of nanotubes, which becomes black red and film, in turn, disperses the ions of lithium".

Carbon nanotube is an allotrope of carbon, which is a hollow cylindrical structure with diameters from tenths to several tens of nanometers and a length of one micrometer to several centimeters, consisting of one or more rolled up graphene planes. And as you know, graphene plane has a thickness of one carbon atom.

Did you know that such tubes exist? Tell us in our

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