Lithium metal battery enhanced by Nano-tubes

Nanotubes:

The allotropes of carbon in the form of cylindrical shape. These Nanotubes are Fullerene family. These have specific properties helpful for Nanotechnology. They have better thermal conductivity, mechanical property, additives, electrical property,etc.,

These Carbon nanotube films have high-powered, fast charging while combined with lithium metal. This acts as a better replacement for lithium-ion batteries.

Carbon Nanotube film in Lithium metal battery:

Challenge:

Scientists researched that, the dendrite development in lithium metal stopped. As time passes, the dendrites grow and fixtures the cathode leads to the failure of the battery. This problem encountered in all commercial applications so they are not preferred. This became a challenge for researchers.

Lithium Metal characteristics:

  • Charges faster
  • Holds more energy

Results:

As the Lithium metals charges quickly, they used widely in cell phone and electric cars. To reduce the growth of dendrites in lithium-ion batteries is the limitation for fast charging. But this is not suitable for an everyday application. Everyone needs to charge their batteries quickly. So, Researchers found a simple, inexpensive and effective method to stop the growth of dendrites.

Way to reduce dendrite growth:

  • Coating the Lithium metal foil with a multiwalled Carbon nanotubes film.
  • Doping the nanotube film around the Li metal turns from black to red.
  • This diffuses the Lithium ions.

While coating the nanotubes around the Lithium metal, it reduces the physical contact but balances by addition of Lithium-ion. The Li-ions spread throughout the nanotube film. When we use batteries, ions discharge from the film and again the anode refills it. Thus, maintaining the battery condition in a good manner.

The dendrites growth smother after adding the nanotube film is 580 charges/discharge cycles of test battery with a sulfurized carbon. The report submitted by researchers says, full lithium metal retained 99.8%, this percentage says about the measure of how efficiently the electrons move in the system.


Lithium-ion battery printed using 3D printing technology. Visit the below link, get more info.

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