Charakterisierung und Modellentwicklung von Natur und Funktionalität der Kathoden/Elektrolyt-Grenzfläche von Hochtemperatur-Brennstoffzellen (SOFC)
Material type:
ArticleSeries: Publication details: KIT Scientific Publishing 2019Description: 1 electronic resource (II, 246 p. p.)Content type: - text
- computer
- online resource
- 9783731508618
- Technology, Engineering, Agriculture, Industrial processes
- Technology: general issues
- FEM modeling
- FEM-Modellierung
- Hochtemperatur-Brennstoffzelle (SOFC)
- Zweitphasenidentifikation
- correlative tomography
- electrochemical impedance spectroscopy
- elektrochemische Impedanzspektroskopie
- korrelative Tomographie
- secondary phase identification
- solid oxide fuel cell (SOFC)
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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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