Charakterisierung und Modellentwicklung von Natur und Funktionalität der Kathoden/Elektrolyt-Grenzfläche von Hochtemperatur-Brennstoffzellen (SOFC)

Solid oxide fuel cells (SOFC) achieve high efficiencies, the lower the internal electrochemical losses are. This work investigates insulating secondary phases at the cathode/electrolyte interface that are formed during fabrication. Full cells and model systems are electrochemically characterized, an...

Full description

Saved in:
Bibliographic Details
Main Author Szász, Julian Tibor
Format eBook
LanguageGerman
Published KIT Scientific Publishing 2019
SeriesSchriften des Instituts für Angewandte Materialien - Werkstoffe der Elektrotechnik, Karlsruher Institut für Technologie / Institut für Angewandte Materialien - Werkstoffe der Elektrotechnik
Subjects
correlative tomography
electrochemical impedance spectroscopy
elektrochemische Impedanzspektroskopie
FEM modeling
FEM-Modellierung
Hochtemperatur-Brennstoffzelle (SOFC)
korrelative Tomographie
secondary phase identification
solid oxide fuel cell (SOFC)
Technology, Engineering, Agriculture, Industrial processes
Technology: general issues
thema EDItEUR
Zweitphasenidentifikation
Online AccessGet full text

Cover

More Information
Summary:Solid oxide fuel cells (SOFC) achieve high efficiencies, the lower the internal electrochemical losses are. This work investigates insulating secondary phases at the cathode/electrolyte interface that are formed during fabrication. Full cells and model systems are electrochemically characterized, analyzed by electron microscopy and reconstructed by tomography. A FEM model reveals performance limiting factors. As a result, an optimized production routine is proposed.
ISBN:9783731508618
3731508613
ISSN:2365-8029
DOI:10.5445/KSP/1000087336