Prediction of Discharge Performances of Pseudocapacitors Using Their Impedance Characteristics

Muhammad R. Hasyim, Ramakrishnan Rajagopalan

Research output: Contribution to journalArticle

Abstract

A first principle model was used to fit the impedance data of intrinsic pseudocapacitors based on polypyrrole and manganese dioxide electrodes and was validated by successfully predicting charge/discharge characteristics. The model performs non-linear regression to an electrochemical impedance spectroscopy (EIS) data using a rigorous prototypical model of pseudocapacitance, which emphasizes an integrated description of the various components of the capacitor at the microscopic and macroscopic level. Parametric studies showcase further how important microscopic variables in pseudocapacitors influence both impedance spectra and galvanostatic discharge.

Original languageEnglish (US)
Article number013536
JournalJournal of the Electrochemical Society
Volume167
Issue number1
DOIs
StatePublished - Jan 1 2020

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this