Investigation and Analysis of Nano Supercapacitors and Electric Current Storage Properties in CNT and Graphene Nanotubes

Note: Because carbon nanotubes are hollow, it is possible to put foreign materials inside them. So, by placing metals inside it, both electrical properties can be improved and energy storage can be done.

The stringed nano supercapacitor has the possibility of both current passing and energy storage. Copper wire and plastic nanoscale layers have been used to make this string. So far, cables and wires have been used to store electricity. But a string of light copper nanowires  can store energy in addition to transmitting electricity. A nanostructure is used for conduction and storage.   Such a wire can be used inside CNT single-layer nanotubes to store current.  Copper nanowires are a nanoscale sheath. And this sheath  is combined with a special alloy and finally creates an electrode.

Supercapacitors need another electrode for storage. For this, a  thin plastic layer is placed on the surface of the sheath and it  is covered with another metal. A special gel is also used to connect these layers together. Due to  the existence of the insulating nano layer, in supercapacitors, the inner wire string can  play the role of current transmitter, and the external electrode provides the possibility of storage independently  . In this case,  a supercapacitor made of copper is produced  , which has the possibility of both current passing and storage. Thomas believes that  such a supercapacitor can be produced with other materials.  The energy storage and electrical conductivity of nanotube cables can  be as high as the conductivity of metal wires.  Among the  various compounds used in supercapacitors, graphene-based materials, especially three-dimensional graphene,  facilitate the penetration of electrolyte due to its unique three-dimensional structure.  and increase energy storage. Also, high electrical conductivity  and large surface area are among other advantages of this type of  three-dimensional porous structures, which have found potential for use in  nano-supercapacitors.

One of the ways to optimize the properties of energy storage systems is to develop new materials for use as electrode materials in nano supercapacitors. Carbon materials such as graphene, carbon nanotubes, graphite, carbon nanofibers, etc., play an important role in nanosupercapacitors due to their good electrical conductivity, cheapness, availability, biocompatibility, and good chemical stability, which is one of the newest of these Carbon structures are three-dimensional graphene, which facilitates the penetration of electrolyte due to its unique three-dimensional structure and has a large surface area and high electrical conductivity.

Conclusion:

Nano supercapacitors are also very similar to capacitors in terms of structure and mechanism  (on the nano scale), with the difference that the surface area of ​​the electrodes is larger due to the many pores in the supercapacitor, which leads to an increase in the energy storage capacity  in the supercapacitor. compared to ordinary capacitors. The energy density  of nano supercapacitors  is much higher than the usual dielectric capacitors.