Carbon nanotube in supercapacitors

WHATWHYHOW

SUPER CAPACITOR

An Electrochemical capacitors or ultra capacitors, which have very high capacitance compared to conventional capacitors and has high values of energy density and power density

TYPES OF SUPER CAPACITORS

Super capacitor V/S Battery

High power density High energy density

Comparison with battery

How it works????????????????????

ELECTRODE MATERIALS

•Carbon nanotubes

•One atom thick sheet of graphite rolled up into a cylinder with diameter in the order of nano scale.

•SP2HYBRIDISED

•Aspect ratio 132000000:1

•electric current density- 4 × 109 A/cm2

•Thermal conductivity-3500 W·m−1·K−1

Thermal Chemical vapour deposition

•Precursors

Paraffin wax (C31H64) Cow dung Benzene(C6H5)

Substrate: Ni FoilCarrier gas: Argon

Cyclic Voltammetry (CV) is a widely used technique in electrochemistry. Early in a development project, CV yields basic information about a capacitive electrochemical cell, including:•Voltage window•Capacitance•Cycle life

•To be continued with

•Outcomes of the synthesis and relevent results

•Characterisation

•Practical applications

THE END