Journal Article FZJ-2022-03992

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Characterization of a Commercial Polymer Electrolyte Membrane Fuel Cell Stack by Means of Physics-Based Modeling and Distribution of Relaxation Times



2022
Soc. Washington, DC

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Abstract: Impedance spectra of a commercial polymer electrolyte membrane fuel cell (PEMFC) stack are analyzed by means of fitting a physics-based model and distribution of relaxation times (DRT) techniques. Oxygen transport coefficients of the gas-diffusion layer, the cathode catalyst layer (CCL), and the CCL proton conductivity are determined for the stack current densities of 150, 250, and 400 mA cm–2. DRT function returns reaction resistivity and transport resistivites of the channel and porous layers. A good agreement between the transport parameters resulting from the fitted model and DRT is demonstrated.

Classification:

Contributing Institute(s):
  1. IEK-13 (IEK-13)
Research Program(s):
  1. 1231 - Electrochemistry for Hydrogen (POF4-123) (POF4-123)

Appears in the scientific report 2022
Database coverage:
Medline ; Embargoed OpenAccess ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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 Record created 2022-10-28, last modified 2023-01-23


Published on 2022-01-28. Available in OpenAccess from 2023-01-28.:
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