Accession Number:

AD1103341

Title:

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

Descriptive Note:

Journal Article - Open Access

Corporate Author:

University of Hawaii Honolulu United States

Report Date:

2019-04-16

Pagination or Media Count:

9.0

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.

Subject Categories:

  • Electrochemical Energy Storage
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE