Fuel cell plate separator

Patent · Tue Sep 16 04:00:00 EDT 1986

OSTI ID:5355135

Joo, L A; Tucker, K W; Shaner, J R

This patent describes a process for the production of a porous monolithic graphite electrode for a fuel cell having an integral edge seal comprising the impregnation of a porous filter paper substrate having a thickness of from 0.5 to 5 mm with a low coke yield impregnant, curing the impregnated electrode from 2 to 24 hours in air at 150/sup 0/C. to 300/sup 0/C.,baking the electrode in a 4 to 24 hour cycle rising to 500/sup 0/C. to 1100/sup 0/C., impregnating the electrode on the edges only with a medium to high coke yield impregnant, repeating the curing and baking steps, and graphitizing the electrode to 1800/sup 0/C to 3000/sup 0/C. in a cycle of 4 hours to 4 days.

• Assignee: Great Lakes Carbon Corp., Briarcliff Manor, NY
• Patent Number(s): US 4611396
• OSTI ID: 5355135
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
AIR
CARBON
CHEMICAL REACTION YIELD
COKE
CURING
DIMENSIONS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTAL MINERALS
ELEMENTS
FABRICATION
FLUIDS
FUEL CELLS
GASES
GRAPHITE
GRAPHITIZATION
HIGH TEMPERATURE
IMPREGNATION
MATERIALS
MINERALS
NONMETALS
POROUS MATERIALS
SUBSTRATES
THICKNESS
VERY HIGH TEMPERATURE
YIELDS