Investigation on performance of Electrochemical Supercapacitor with 3D graphene-based electrodes
Abstract
Super capacitor is an ideal device for applications where high peak load is required. A super capacitor model is useful in estimating its energy, capacity and other functional features that takes in consideration of device component variables. Super capacitor s performance is influenced by the interactions of the physical, electrical and structural features of its electrode materials and other super capacitor components. A great amount of work has been focused on producing a high quality graphene that can match pristine graphene. Results have shown that presence of 3D graphene can further improve the energy density of a super capacitor. The overall performance of a super capacitor depends on each of the super capacitor s components, yet the study on the entire cell of super capacitor and its performance has not been addressed by many. To provide the insight to the overall performance of a 3D graphene based super capacitor, we proposed to develop a continuum model of of an electric double layer capacitor (EDLC) using Poisson-Nernst-Planck (PNP) electrodiffusion theory, which takes into account the three-dimensional organized electrode structures, the Stern and diffuse layers, definite size of ions and the variation of electrolyte permittivity on the local electric field. In the second part of the project, a 3D graphene based super capacitor will be fabricated and its performance will be characterized according to its components parameters. The results will be used to validate the developed simulation model. The outcome of this project is a model of an electric double layer capacitor with 3D graphene material that can be used to give insights and produce recommendations for design and optimization approach for electrochemical super capacitor cell with a wide range of applications.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 19, 2018
- Source ID
- FA23861814048
Entities
People
- Nabilah Ramli
Organizations
- Air Force Office of Scientific Research
- International Islamic University Malaysia
- United States Air Force