Electrolyte matrix for molten carbonate fuel cells

Patent · Tue Mar 30 04:00:00 EST 1982

OSTI ID:5316762

Bregoli, L J; Bushnell, C L; Schroll, C R

Thru-cracks in the electrolyte retaining matrix of a molten carbonate fuel cell caused by thermal cycling of the cell between operating and room temperature are prevented by an improved matrix comprising a major proportion of submicron support particles and a minor proportion, perhaps only a few percent, of much larger crack attenuator particles. In one embodiment wherein the electrolyte is to be a binary lithium-potassium carbonates composition, the matrix comprises 90 volume percent submicron lithium aluminate support particles and 10 volume percent alumina crack attenuator particles with an average size of 100 microns.

• Assignee: United Technologies Corp
• Patent Number(s): US 4322482
• OSTI ID: 5316762
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBONATES
CERAMICS
CHALCOGENIDES
CONTAINERS
CRACKS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROLYTES
FUEL CELLS
HIGH-TEMPERATURE FUEL CELLS
LITHIUM CARBONATES
LITHIUM COMPOUNDS
MATERIALS
MATRIX MATERIALS
MECHANICAL STRUCTURES
MOLTEN CARBONATE FUEL CELLS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PARTICLES
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
SIZE
SODIUM CARBONATES
SODIUM COMPOUNDS
SUPPORTS
THERMAL CYCLING
TRANSMISSION