A Model for Local Impedance: Validation of the Model for Local Parameters Recovery from a Single Spectrum of PEM Fuel Cell

Abstract

A physicsbased numerical model for fitting local impedance spectra (local impedance model, LIM) of the segmented PEM fuel cellis developed and used to validate our recent model for recovery of local parameters from a single spectrum of the whole cell (cellimpedance model, CIM). Shapes of the local parameters along the cathode channel resulting from the two models are compared.Overall, the CIM quite satisfactorily describes the cell local parameters provided that the oxygen transport impedance in the channelis not small as compared to other impedances in the cell.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 16, 2019
Accession Number
AD1103341

Entities

People

  • Andrei Kulikovsky
  • Tatyana V. Reshetenko

Organizations

  • University of HawaiĘ»i System

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Capacitance
  • Coefficients
  • Current Density
  • Diffusion
  • Diffusion Coefficient
  • Diffusivity
  • Electrodes
  • Equations
  • Flow
  • Flow Fields
  • Fuel Cells
  • Impedance
  • Measurement
  • Military Research
  • Oxidation Reduction Reactions
  • Research Facilities

Fields of Study

  • Biology
  • Physics

Readers

  • Computational Modeling and Simulation
  • Materials Science and Engineering.
  • Software Engineering

Technology Areas

  • Biotechnology