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Charakterisierung und Modellentwicklung von Natur und Funktionalitaet der Kathoden/Elektrolyt-Grenzflaeche von Hochtemperatur-Brennstoffzellen (SOFC)
Szász, Julian Tibor
2019
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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.
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Keywords
- correlative tomography
- Electrochemical impedance spectroscopy
- elektrochemische Impedanzspektroskopie
- FEM modeling
- FEM-Modellierung
- Hochtemperatur-Brennstoffzelle (SOFC)
- korrelative Tomographie
- secondary phase identification
- Solid Oxide Fuel Cell (SOFC)
- Zweitphasenidentifikation
Links
DOI: 10.5445/KSP/1000087336Editions