Conditioning effects on La1-xSrxMnO3-Yttria stabilized Zirconia electrodes for thin-film solid oxide fuel cells
- LBNL Library
Composite cathodes of 50/50 vol percent LSM-YSZ (La1-xSrxMnO3-yttria stabilized zirconia) were deposited onto dense YSZ electrolytes by a colloidal deposition technique. The cathode characteristics were then examined by scanning electron microscopy (SEM) and studied by an impedance spectroscopy (IS). Conditioning effects of the LSM-YSZ cathodes were seen, and remedies for these effects were proposed for improving the performance of a solid oxide fuel cell (SOFC). LSM surface contamination and modification, cathode bonding to the YSZ electrolyte, changing Pt electrode and bonding paste, and curvature of sintered YSZ electrolytes led to some changes in microstructure and variability in cell performances.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Director, Office of Science (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 810538
- Report Number(s):
- LBNL--51873
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
BONDING
CATHODES
COMPOSITE CATHODES COLLOIDAL DEPOSITION TECHNIQUE CONDITIONING EFFECTS IMPEDANCE CHARACTERISTICS
DEPOSITION
ELECTRODES
ELECTROLYTES
IMPEDANCE
MICROSTRUCTURE
PERFORMANCE
SCANNING ELECTRON MICROSCOPY
SOLID OXIDE FUEL CELLS
SPECTROSCOPY
SURFACE CONTAMINATION