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Title: 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:
 [1];  [2];  [3]
  1. (West Springfield, MA)
  2. (Coventry, CT)
  3. (Amherst, MA)
Issue Date:
Research Org.:
UNITED TECHNOLOGIES CORP
OSTI Identifier:
864840
Patent Number(s):
4426340
Assignee:
United Technologies Corporation (Hartford, CT) OSTI
DOE Contract Number:  
AC03-77ET11302
Resource Type:
Patent
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 = {1984},
month = {1}
}

Patent:

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