Process for fabricating ribbed electrode substrates and other articles
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- United Technologies Corporation, Hartford, CT (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 864840
- Patent Number(s):
- 4426340
- Application Number:
- 06/306,836
- Assignee:
- United Technologies Corporation (Hartford, CT)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
- DOE Contract Number:
- AC03-77ET11302
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1981 Sep 29
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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/
Citation Formats
Goller, Glen J., Breault, Richard D., and Smith, J. Harold. Process for fabricating ribbed electrode substrates and other articles. United States: N. p., 1984.
Web.
Goller, Glen J., Breault, Richard D., & Smith, J. Harold. Process for fabricating ribbed electrode substrates and other articles. United States.
Goller, Glen J., Breault, Richard D., and Smith, J. Harold. Sun .
"Process for fabricating ribbed electrode substrates and other articles". United States. https://www.osti.gov/servlets/purl/864840.
@article{osti_864840,
title = {Process for fabricating ribbed electrode substrates and other articles},
author = {Goller, Glen J. and Breault, Richard D. and Smith, J. Harold},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}