Multilayer ceramic oxide solid electolyte for fuel cells and electrolysis cells and method for fabrication thereof

Patent · Tue Sep 18 00:00:00 EDT 1990

OSTI ID:6205617

Schroeder, J E; Anderson, H U

This patent describes a process for forming a composite tape. The tape comprising a layer of dispersed small size stabilized zirconia particles on a layer of agglomerated lanthanum manganite which is operable with fired at a temperature of about 1300{degrees}C. for forming a ceramic structure having a first layer of sintered lanthanum manganite having no more that about 70% of theoretical density and, bonded to such first layer, a second layer of sintered stabilized zirconia having at least about 95% of theoretical density without significant migration of manganese from such first layer into such second layer.

• Assignee: California Inst. of Technology, Pasadena, CA (USA)
• Patent Number(s): US 4957637; A
• Application Number: PPN: US s 7-151172; TRN: 90-036598
• OSTI ID: 6205617
• Resource Relation: Patent File Date: 1 Feb 1988
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
FUEL CELLS
SOLID ELECTROLYTES
FABRICATION
CERAMICS
CHEMICAL COMPOSITION
LANTHANUM COMPOUNDS
MANGANESE OXIDES
ZIRCONIUM OXIDES
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROLYTES
MANGANESE COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
300503* - Fuel Cells- Materials
Components
& Auxiliaries