What are the principle paths to realizing supercapacitors (sometimes called ultr

Question

What are the principle paths to realizing supercapacitors (sometimes called ultracapacitors)? a. Increase the area of electrodes by using carbon nanotubes and/or graphene b. Introduce a relax or ferroelectric as a dielectric material c. Increase the distance of electrodes to reduce the likelihood of dielectric breakdown d. a and b e. a and c Explain the ionic polarization mechanism as it pertains to a relax or ferroelectric. a. The polyhedron experiences a cooperative John-Teller tilting to accommodate phonon dispersion b. The central ion displaces within the polyhedron in response to an AC excitation c. Cross linking of polymer chains occurs by way of AC excitation thus enhancing polarization Wrinkled graphene is now considered for use as electrodes in a supercapacitor. Why? a. It affectively increases the inter-electrode distance thus reducing the likelihood of dielectric breakdown b. It introduces a very large surface area as an electrode material c. It introdu

Explanation / Answer

13- D is corect.

As the supercapacitors capacity depends on the area of electrodes, a is correct. Also b is correct as in the research scientists found that using relaxor ferroelectric increases the storage capacity.

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