Process for fabricating ribbed electrode substrates and other articles

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:864840

Goller, Glen J ^[1]; Breault, Richard D ^[2]; Smith, J Harold ^[3]

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1. West Springfield, MA
2. Coventry, CT
3. Amherst, MA

A process for fabricating a resin bonded carbon fiber article, and in particular electrochemical cell electrode substrates and the like requiring different mean pore sizes in different areas, involves simultaneously heating and compacting different mixtures of carbon fibers and resin in different areas of an article forming mold, wherein the carbon fibers in each of the different mixtures have different, known bulk densities. The different bulk densities of the carbon fibers in the mixtures are chosen to yield the desired mean pore sizes and other properties in the article after heating and compacting the mixtures. Preferably, the different bulk densities are obtained using different carbon fiber lengths in the molding mixtures. The process is well suited to forming ribbed electrode substrates with preselected optimum mean pore sizes, porosities, and densities in the ribs, the webs connecting the ribs, and in the edge seals.

• Research Organization: UNITED TECHNOLOGIES CORP
• DOE Contract Number: AC03-77ET11302
• Assignee: United Technologies Corporation (Hartford, CT)
• Patent Number(s): US 4426340
• OSTI ID: 864840
• Country of Publication: United States
• Language: English

Related Subjects

process
fabricating
ribbed
electrode
substrates
articles
resin
bonded
carbon
fiber
article
particular
electrochemical
cell
requiring
mean
pore
sizes
involves
simultaneously
heating
compacting
mixtures
fibers
forming
mold
bulk
densities
chosen
yield
desired
properties
preferably
obtained
lengths
molding
suited
preselected
optimum
porosities
ribs
webs
connecting
edge
seals
electrode substrate
edge seal
carbon fibers
carbon fiber
electrochemical cell
pore size
pore sizes
mean pore
cell electrode
edge seals
ribbed electrode
resin bonded
simultaneously heating
article forming
fiber article
electrode substrates
bonded carbon
/264/